I was thinking just the other day to start a new thread about this very topic, nice one chillidog
This is the list that I have compiled so far;
Academy -Manufactured by Academy hallmark
Academy -Manufactured by Materion hallmark (small)
Academy - Blank
Apmex - Manufactured by Academy hallmark (small)
Apmex - Made by Academy hallmark (large)
Apmex - Manufactured by Materion hallmark (small)
Scottsdale - Manufactured by Materion hallmark (small)
Scottsdale - Manufactured by Materion hallmark ( Large )
Scottsdale - Manufactured by Academy hallmark ( Large ISO )
Scottsdale - Manufactured by Acamemy hallmark
Scottsdale - Blank
Scottsdale - MFG by Scottsdale Mint + Serial Number
Scottsdale - Serial Number
Scottsdale - Lion logo + Serial Number
Southern Cross -Manufactured by Materion hallmark (small)
Southern Cross -Manufactured by Materion hallmark (large)
South West Bullion - Manufactured by Materion hallmark (small)
Silver Stackers -Manufactured by Materion hallmark (small)
Ainslie Stackers - Scottsdale lion logo
Intrinsic Tender 10 XAG - Scottsdale lion logo
This list is just what I have seen, there could be more versions out yet. There is also a SouthWest Bullion Stacker bar which I think was made by Materion but I have never seen one so I am thinking it is quite rare, I would pay a handsome premium to anyone who has one and wants to sell
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Not really part of the Machined Stacker set but I have added the SBA Stacker to this list. It's cast so no reeded edge and no machined swirl pattern on the back but it still stacks with all the other brands
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And finally I have a full set of the different brands
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I will update this post whenever I find something different.
GP could we please make this a sticky so it easy to find for future reference?