although, allengelhard didn't give me a credit for discovering MG 1kgs I will report a sighting of another beauty - 2kg size. (observed on TM, enjoy ;-) ) look here :yarr: the pictures belong to TM member Nighbeat and for a bonus 1kg variety, which came into my hands. This one got WH counter stamp and numbering. (thank you WH for accounting beautiful bars)
It only took me a fortnight to actually see your mention of the similar crown stamps. They do resemble each other, but I don't think the producers are related. The crown mint bars were made here in the US decades ago, and they are pretty scarce bars now, I've seen them in 5oz and 15oz sizes. Are the SBA bars currently in production?
With one exception, I wasn't able to hunt down any vintage silver bars at generic prices this week, so we ended up splurging a bit on these . . . I think they're worth it!
3 out of these 4 are on there way to me now.... Purchased in 1975 with photo of invoice to show date and $3.83per oz...LOL [imgz=http://forums.silverstackers.com/uploads/10678_invoice_for_16_x_50oz_harrington_bars_1.jpg][/imgz] [imgz=http://forums.silverstackers.com/uploads/10678_invoice_for_16_x_50oz_harrington_bars_2.jpg][/imgz]
I acquired this collection of stamped and unstamped omega M & B Mining Vintage silver bars. not sure what to do with them as I cannot find a single example of the 1/2 oz bars much less the unstamped examples
An awesome find here, the bars under 10 oz do command a nice premium, the .5 oz ones are the most scarce based on my experience. I don't see them turn up often, maybe once a year on ebay.
I've got a couple. Some around 70g some around 80g All with an aphbate on reverse side, either A or B or C Hope this help