I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. tie tack/bar: 2.01" x 0.39" (2" x 3/8" or 51mm x 9.5mm). collar bar: none. 0.25" = 1/4" or 6mm - pretty small for standard button holes. 0.38" = 3/8" or 9mm - also fits standard button holes.
P & H Vintage Tie Bar Clip
1948 St. P S Vintage Alumni Lapel Pin St Paul School p63
P of H Grange Vintage Lapel Pin Patrons of Husbandry s115
P of H Grange 25 Year Vintage Lapel Pin Back star patrons husbandry L111
Sterling Silver Ring 2mm Band In Sizes G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z (O)
Sterling Silver Ring 4mm Band In Sizes G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z (J)
