referring to the drawing figures , like reference numerals designate identical or corresponding elements throughout the several figures . referring now in detail to the drawings , an exemplary display frame 10 consistent with this disclosure may comprise a number of interrelated elements as shown in fig1 - 4 . according to some aspects , the display frame 10 may be made of plastic , wood , metal or a combination of two or more of the aforementioned materials . as shown in fig1 , the exemplary frame 10 may comprise a first side 12 ( i . e ., a front side ) and a second side 14 ( i . e ., a rear side — fig2 ). the frame 10 may include a plurality of compartments , or openings , 16 delimited by at least one wall 18 . each compartment 16 may be open at the first and second sides 12 , 14 . according to some aspects , the compartments 16 may have four walls 18 defining a shape such as , for example , a square , rectangular , diamond , or the like . it should be appreciated that the compartments 16 may be delimited by any number of walls defining any known shape . according to various aspects of the disclosure , one or more of the walls 18 may include one or more raised projections 20 . the projections 20 may be formed of a material that is deformable , crushable , or the like . for example , the projections 20 may be constructed of plastic , wood , or the like . referring now to fig2 , according to various exemplary aspects , the display frame 10 may include one or more sockets 22 at the second , or rear , side 14 configured to facilitate wall mounting of the display frame 10 . for example , the sockets 22 may be sized and arranged to receive a picture - hanging hook , the head of a nail or screw , or the like . in some aspects , the wall mounting socket 22 may be centered and spaced from one of the side edges 24 , 26 of the display frame 10 . for example , in some aspects , the socket 22 may be approximately 1 inch from the respective side edge 24 , 26 of the frame . this may facilitate the easy mounting of the display on a wall by the consumer in either a vertical or horizontal orientation . as shown in fig3 , each compartment 16 may be further delimited by at least one framing member 30 extending from a side wall 18 of the compartment 16 . the framing member 30 may extend substantially perpendicular to the side wall 18 and substantially parallel to the first and second side 12 , 14 . for example , in some aspects , the compartment 16 may be delimited by four side walls 18 , and each side wall 18 may have a framing member 30 extending therefrom . the framing member 30 prevent an object in the compartment from falling out or being urged out the first , or front , side 12 of the frame 10 . to remove an object from the compartment 16 , a user can urge the object from the first side 12 out the second , or rear , side 14 of the frame 10 . according to some aspects of the disclosure , the display frame 10 may comprise a clear acrylic or lexan polycarbonate display lens ( not shown ) that is attached , for example , via bonding , to the first side 14 of the display frame 10 . the lens permits viewing of the contents of the compartments of the frame 10 from the first side 14 . referring now to fig4 , according to various aspects , one or more consumer - supplied small collectible item display cases 90 may be received by the plurality of openings or compartments 16 at the rear side 14 of the display frame 10 . for example , the dimensions of the openings or compartments on the rear side of the base ( width , height , and depth ) may be substantially the same size as the display cases commonly used in the collectible coin industry . fig4 illustrates the exemplary frame 10 and an exemplary display case 90 utilized by the collectible coin industry to house each year &# 39 ; s increment of the quartermania state quarter collection ( i . e ., the five state quarters minted that year ). it is noteworthy that the quartermania coins are sold in “ gem brilliant , uncirculated ” condition , thus the sample display case shown is sealed to protect and preserve these valuable properties . the dimensions of the ten compartments may be specifically chosen to match the dimensions of the small display cases commonly used in the collectible coin industry . for example , the currently marketed “ quartermania ” state quarter product features ten separate , annually issued , sealed display cases with each case holding the five state quarters minted in that calendar year . as noted , these ten display cases may fit perfectly into the display frame , providing the consumer with a wall mountable mechanism for displaying all ten incremental years of their valuable collection . according to one exemplary aspect , the display frame 10 may be approximately 22 inches tall , about 14 . 4 inches wide , and approximately ¾ ″ thick . the display frame 10 may feature ten ( 10 ) compartments that will be placed in two vertical columns of five compartments each . each of these compartments may measure 5 . 655 ″ wide , 3 . 475 ″ high , and have a depth of 0 . 325 ″. in addition , each of the ten compartments in the display frame may have four ( 4 ) projections , or “ crush ribs ,” two on each of a pair of opposed side walls , which will be used to hold the consumer inserted collectible item display cases in place in the compartments 16 of the display frame 10 . once each display case is inserted , the four crush ribs will compress thereby providing a friction fit to hold the display case securely in place . fig4 is a complete , unobstructed view of a display system 100 . as configured and depicted , it is set to house all the display cases that would form a complete ten year set of the quartermania state quarter collection . it should be appreciated that display frames consistent with the disclosure may include more than or less than the ten compartments shown in the fig1 - 4 . for example , as shown in fig5 - 7 , a display frame 50 , 60 , 70 may have four compartments . the compartments may be arranged a two - by - two rectangular configuration ( fig5 ), a column ( or row ) of four ( fig6 ), or in a diamond configuration ( fig7 ). according to an exemplary embodiment , the display frame 50 , 60 , 70 may be configured to accommodate the u . s . presidential dollar collectible coin series . the frames 50 , 60 , 70 contain four compartments — one for each of the four coins that the u . s . mint plans to produce each year . the frames 50 , 60 , 70 may comprise raised projections , sockets , and framing members similar to those discussed above in connection with fig1 - 4 . it should also be appreciated that the aforementioned dimensions are exemplary only , and that the dimensions may be modified to accommodate cases of any size and / or shape . moreover , it should be appreciated that the arrangement of the openings may be different than illustrated in the accompanying drawings . it should also be appreciated that the display system described in this disclosure may receive and display cases containing other types of collective and / or non - collective items such as , for example , stamps , trading cards , golf balls or tees , baseballs , or the like . the display frames 10 , 50 , 60 , 70 in accordance with the disclosure are novel apparatuses that may provide the collectors of various items of an incremental nature the capability of displaying all the items in their collection in one wall mounted display platform . typically , these incremental items , which collectively make up a “ complete ” collection , are purchased and received by the consumer in clear plastic display cases . these collectible items , as distributed in their original display cases , are often perfectly sized for insertion into the plurality of openings or compartments provided for in the display frames . according to some aspects of the invention , the display frames may serve as a wall - mountable base through which the consumer can view multiple collectible item display cases . the rear side of the base may serve as a support for a plurality of openings or compartments for the insertion of the consumer supplied collectible item display cases . the display frames of the disclosure may provide the consumer with an apparatus that will allow them to showcase their collectible items which normally represent a strong sense of pride in addition to what is usually a significant investment . this invention , if properly utilized by the collector &# 39 ; s of valuable coins , may provide added value by also preserving and protecting the integrity of the “ gem brilliant , uncirculated ” condition of their coins . according to one exemplary embodiment , this disclosure may be especially suited to facilitate the needs of the collectors of the u . s . state quarters “ quartermania ” product , which , in total , encompasses ten separate display cases which will fit perfectly into the ten compartments illustrated in fig1 - 4 . according to other embodiments , the disclosure may be especially suited to facilitate the needs of the collectors of the u . s . presidential dollar collectible coin series , which has begin minting in february 2007 and encompasses four separate display cases per year which will fit perfectly into the four compartments illustrated in fig5 - 7 . it will be apparent to those skilled in the art that various modifications and variations can be made in the display frames of the present invention without departing from the scope of the invention . other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein . it is intended that the specification and examples be considered as exemplary only .