I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. cuff links: none. tie bar/tack: 0.62" x 0.62" (approx. 5/8" x 5/8" or 15.5mm x 15.5mm). collar bar: none. 0.25" = 1/4" or 6mm - pretty small for standard button holes.
ALA Junior American Legion Auxiliary Vintage Screw Back Lapel Pin o01
Vintage American Legion Gold Tone Tie Bar Clip Mens 1.5 In Enamel Jewelry
ALA American Legion Auxiliary Vintage SCREW BACK ENAMEL Tie Tack Lapel Pin o86
American Legion Boys' State Illinois Vintage Tie Bar Clip fraternal
American Legion Gold-Tone Tie Clip With Logo Insignia Vintage (B103)
Vintage MARVEL Signed AMERICAN LEGION Tie Clip in Gold Tone