a/: stud of black glass with facetted top and two feet – b,c/:circular steel buttons with edge cut in scallops and in each scallop and in the center a facetted steel boss – d/: circular, flat wooden buttons decorated with carving and circular ornaments of cut steel – g/: circular button with ornament and rim of cut steel -h/: circular button of steel with facetted boss in center and others forming ring at edge with openwork section between – i/: button with brilliants [of two sized] set in three rings around central stone. For other objects from the original set accession numbered 1943-5-6-a/k, see also: 1943-5-6-e,f,j [deaccessioned], and 1943-5-6-k [deaccessioned].
Component -b is on Cooper Union Exhibition card 4
Component -c is on card 58
Component -d is on card 37
Components -g,-h are on card 64
Component -i is on card 19
Button, late 19th century 
Stripes, late 19th century 
Buttons, 20th century