Vintage Damascus Steel Barrel, Engraved, Single-Shot shotgun

[dttuner]

Need some help with identification, and value of this shotgun.
Lightweight, and small, almost seems made for youth-size.
Damascus steel veins are faint, but clearly there. Wood is rich and marbley.
Receiver and trigger guard area are engraved.

Firing pin seems bent at the tip. If I pull the trigger, thereby extending the firing pin, it does not retract. It sticks out into the breach, and I can't fully open the shotgun.
Need to push firing pin back-in with a flat piece of metal.

Barrel marked "BV" "24" "E" (BV = Birmingham Britain proof house?)
Receiver marked with what looks like "P" and "AO"

Information

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