Looking For A Source For 28mm Square Coin Tubes

I've searched all over, and I cannot even find a reference for 28 mm tubes of any type.

I did a search of Canadian larger coins.
here is what I found:
26.72mm - (Loonie 1987-1989)
29.72mm (50 cent)
28mm 2 dollars (Toonie)
36mm (Dollar)

So it would look like only Toonies would fit a 28mm tube, you would need larger ones to other 50 cent an dollar coins.

I just measured mine inside measurements

Large dollar 38mm
Small dollar 27mm
Half dollar 30mm

These can be found at Colonial Acres

great Hondo! thanks

Hi Hondo Boguss - Lots of luck on the binders. The weight of coins in the 3 ring binders makes it even worse. I am also a stamp collector, so I am rearranging the use of some Scott D-ring binders for pages holding 2x2 cards and I have to be careful. I also am using one Scott Specialty Album that is 3 ring with a 2.5 spine that I one bought accidentally. That one is fairly good but it gets really heavy due to the size and it is a fairly expensive binder. I am only using it as I have no good use for it in my stamp collection.

Yeah, I'm in it too, but been having too much fun in coins lately. But I did post a while back there about a French fairly expensive airmail stamp I had expertised. The group there pointed out an error in the stamp making it even more valuable. The experts at APS who took six months to get the certificate to me missed that.