Black-and-gray
Black-and-gray (also black-and-grey, black and grey/gray) is a style of tattooing that uses only black ink in varying shades. This tattooing style is thought to have originated from prisons in the 1970s and 1980s and was later popularized in tattoo parlors. Origin Black-and-gray is sometimes referred to as "jailhouse" or "joint style" and is thought to have originated in prisons where inmates had limited access to different materials; they resorted to using guitar strings for needles and used cigarette ashes or pen ink to produce tattoos. Inmates would construct makeshift tattoo machines that were powered using the small motors available in tape players. Prisons generally prohibit inmates from tattooing, so these were likely to be done in secret. During the late 1970s and early 1980s, jailhouse then became popularized in tattoo parlors outside of prison and was renamed "black and gray". Black-and-gray is also thought to have originated from the Chicano or cholo culture in Los Angeles. Technique Typically, black-and-gray tattoo work is produced by diluting the black ink with distilled water in varying proportions to create a "wash" that results in lighter shades. Gray shades can also be produced by mixing small amounts of black ink with white ink,