I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. cuff links: 0.78" x 0.80" (13/16" x 13/16" or 19.5mm x 20mm). tie tack/bar: none. I always try to point out any clear blemishes and condition. VERY GOOD - used, showing minor signs of use.
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