1892-O Barber Half Counterstamp ID Requested

It is a very interesting counterstamp despite the coin being vg details. I could not find anything about the counterstamp during my searches. Maybe someone else who knows counterstamps can help you. I like the counterstamp. My theory is that someone created something, sent it in to be patented, and the patent failed or the item was lost in the mail or the person died or was disinterested with the idea and this prototype counterstamp was left or spent.

to the CCF

This is a cool item, but sadly, the C/S isn't full. IMHO, this piece can likely be attributed. Doing so would, IMHO, assuredly enhance its value.

Checking my Brunk book, I don't find this piece listed. Note that Brunk not only listed counterstamps according to the issuer's name but also by geographical location. It's quite possible that this is a unique counterstamp. However, being unique is by no means unusual.

Attributing this c/s could take many hours of research. The good part is that you have the location AND the likely era, being mid to late 1890's or perhaps beyond. Fortunately, there are websites that offer searchable San Francisco City directories. In this case, methinks, patent searches are useless because we lack a date and don't know if a patent was even approved. As patent stamps go, this is a fairly large one and oval-shaped. It reminds me of ones I have that were utilized by a carriage maker and coffee pot manufacturer, respectively.

Some directory search engines permit partial word searches, so using one of them would be a logical starting point. Here's one of my favorite websites as such, offering an 1895 S.F. directory ....

https://archive.org/details/CITY_DI...AN_FRAN_1895

One more thing .... For anyone posting pics of c/s's, I humbly request that they orient the view so as to make the pics reader-friendly .... as follows ....