I've got a box that is 5" high by 10" wide. I haven't yet tested my BCS-graded notes in the box, but when I do, I'll report back. If I remember, I'll also try to get measurements of the inner box itself.
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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.