Going Big (at least for me) at the LCS

I mentioned recently that my LCS has been pretty picked over lately. Sometimes they've even been completely out of generic silver. I've slowed down on my silver purchases at the LCS, because nothing too interesting has been available.

So it was with pretty low expectations that I visited today. However, I walked in and saw that the generic bin was well stocked with things like this.

There were probably five like this and six 10 oz SilverTowne bars, along with some assorted 1 oz rounds. Apparently an older gentleman came in and said "I bought all this stuff in the 70's, and I don't want it anymore. What can I get for it?". The coin shop bought all of it.

This is exactly the kind of thing I've been waiting for. It's my first 10 oz, and my first National Refiners Assayers piece. I couldn't be happier with my purchase.

The back edges seem to have been rounded off, I'm assuming to hit the weight more precisely.

I've tried to do a little searching for info about this company, mintages, and serials, but have come up largely empty. I assumed there would be a database online akin to allengelhard.com for these bars, but I'm finding nothing. Does anyone know of a resource or have any info about this bar? They don't seem to go for a huge premium, so maybe there's just not too much of a collector market out there? Or maybe they're very plentiful?

I've never seen one in my shop before, so I thought I better grab it while I could. Now I'm trying to see if I can scrape together enough spare cash to grab another one before they're gone.