Tell me about this gibson engraved tailpiece

[BlueMountain]

I received an engraved Gibson tailpiece in the mail today (not the one in this photo). The seller says he's had it in a drawer for a good forty years, but he doesn't know how old it is. Can you help me? My other Gibson tailpieces are lovely but I think stamped. Is that correct? Here's one from a '23 F4, and I have a '25 A that looks the same.

[BlueMountain]

Here's the one that just arrived. Clearly engraved, and with a fine engraving tool.

[BlueMountain]

So when would this have been made? Is it a real Gibson tailpiece or a jeweler's copy? Would this be an F5 tailpiece?

[BlueMountain]

An underexposed shot to emphasize the engraving.

[BlueMountain]

The back is brass. Is that common or a tip-off or anything? I've included something white in the photo for color balance so you can see the yellowness of the metal. Thanks for your help.

[danb]

Your new one looks like a (good) copy to me. The vintage ones, as far as I know, are stamped brass, and plated in nickel silver.

[BlueMountain]

Thanks, Dan