The Perfect Gift For The Numismatist Who Has It All -- Not For Sale
First of all, this is NFS (not for sale). I recently purchased this from another dealer who knows that I like exonumia and related items.
You are looking at a contemporary cufflink featuring a 1909-S VDB Lincoln cent. It is relatively high grade with AU details. Authenticity is confirmed by the usual diagnostics, including the mint mark position, which is number four (lowest position).
My guess is that this was created in 1909 or shortly thereafter. The style of the cufflink fits the period perfectly. A jeweler likely made a pair of gilt cufflinks for inventory, or by custom order. A fresh 1909-S VDB cent would have been worth anywhere from $0.01 (if found in change) and up to $1 or more at the time of issue. They were very popular with the public and people were paying a premium, especially for the San Francisco issue with the designer's initials.
Of course the above is speculation. Perhaps the jeweler used any Lincoln cent available and just so happened to pick up an S-VDB. Doubtful, but who knows. I just wish that I had the other cufflink to complete the set!