(I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. cuff links: none. collar bar: none. 15/16" or 24mm). I always try to point out any clear blemishes and condition. 0.25" = 1/4" or 6mm - pretty small for standard button holes.
The "Fire Captain Rank Insignia Vintage Tie Tack Lapel Pin collar lapel h89" product would be an ideal fit for firefighters who have earned the rank of captain within their fire department.