 The so @-@ called " space frame " had already been used by Alberto Giacometti in the 1930s , and the two artists became friends in the 1960s . However Giacometti had by 1949 used it only in surrealist contexts before Bacon 's adaption , and in turn influenced his use in " The Cage " of 1950 . A similar two dimensional construct is found in Henry Moore 's works , notably his " Maguette for King and Queen " , constructed three years after Bacon 's Head . It is difficult to untangle how these artists influenced and informed each other . What is notable is that Bacon continued to use the motif , with intervals until the end of his life . Sylvester suggests his finest example is the 1970 Three Studies of the Male Back . 
 The so @-@ called " space frame " <a href='been_done' title='1'><mark>had</mark></a> already been used by Alberto Giacometti in the 1930s , and the two artists became friends in the 1960s . However Giacometti had by 1949 used it only in surrealist contexts before Bacon <a href='null_genetive' title='2'><mark>'s</mark></a>adaption , and in turn influenced his use in " The Cage " of 1950 . A similar two dimensional construct is found in Henry Moore <a href='null_genetive' title='3'><mark>'s</mark></a>works , notably his " Maguette for King and Queen " ,<a href='been_done' title='4'><mark></mark></a> constructed three years after Bacon <a href='null_genetive' title='5'><mark>'s</mark></a>Head . It <a href='drop_aux' title='6'><mark>is</mark></a>difficult to untangle how these artists influenced and informed each other . What <a href='drop_aux' title='7'><mark>is</mark></a>notable is that Bacon continued to use the motif , with intervals until the end of his life . Sylvester <a href='uninflect' title='8'><mark>suggests</mark></a> his finest example is the 1970 Three Studies of the Male Back . 
The so @-@ called " space frame " done already been used by Alberto Giacometti in the 1930s , and da two artists became friends in tda1960s . However Giacometti had by 1949 used it only in surrealist contexts before Bacon  adaption , and in turn influenced his use in " The Cage " of 1950 . A similar two dimensional construct is found in Henry Moore  works , notably his " Maguette for King and Queen " , done constructed three yrs after Bacon  Head . It difficult to untangle how these artists influenced and informed each other . What notable is dat Bacon continued to use the motif , with intervals until the end of his life . Sylvester suggest his finest example is the 1970 Three Studies of the Male bak .