Dating and identifying hallmark on belt buckle

I'm wondering if anyone can help me figure out this hallmark, and hopefully date this lovely belt buckle. Thanks!

 

Hi, that's not a hallmark (which is an official mark on precious metals) but perhaps a brand logo and manufacturer's ref. number, probably for the design.
The buckle design is art nouveau in style, but I suspect the buckle is not very old at all and made in an antique style - you can see the base metal underneath the worn parts.
This type of fastening on a belt buckle is one I have seen within the last 10 years on wide belts intended for the hips rather than the waist. The silver metal blob on the back probably had a ball ended prong on it that has broken off - this would go through the holes in a leather belt.

 

I know this! Can't remember this minute, wait, got it. Bergamot Brass Works. I have a similar Art Nouveau style buckle. I'd imagine they are from the 70's perhaps, though I believe they are still in business.