I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. tie tack/bar: 1.65" x 0.67" (1-5/8" x 11/16" or 41.5mm x 16.5mm). 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
American Legion Vintage Tie Clasp
US American Legion Vintage Tie Bar Clip
American Legion Vintage SCREWBACK Lapel Pin v42
American Legion Vintage Screw Back Lapel Pin fraternal
(2) Vintage American Legion Tie Lapel Clip Gold Tone Metal Clear Dome Logo