I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. cuff links: none. tie tack/bar: 0.43" x 0.62 (approx. 7/16" x 5/8" or 11mm x 15.5mm). collar bar: none. 0.25" = 1/4" or 6mm - pretty small for standard button holes.
May 1942 Muskegon Michigan C10 Council Vintage Tie Bar Clip
Safe Driver 1 Year Natl Safety Council Vintage SCREW BACK Tie Tack Lapel Pin o90
1972 RHS Alumni High School Graduate Vintage Tie Tack Lapel Pin x34
Vintage Sterling Silver Swank Cufflinks H.G & S Birmingham 1972 Boxed
1972-1973 US VFW Veterans of Foreign Wars Vintage Tie Bar Clip
Timex 1972 Vintage Unisex Watch