There's also the matter of "one size fits all" so that you can save costs by only manufacturing a single size of holder and it can accommodate anything from shinplasters to large-size Dominion and chartered notes.
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BWJM, F.O.N.A.
Life Member of CPMS, RCNA, ONA, ANA, IBNS, WCS.
President, IBNS Ontario Chapter.
Treasurer, Waterloo Coin Society.
Show Chair, Cambridge Coin Show.
Fellow of the Ontario Numismatic Association.