I've been looking into this board and although I don't have any old Indestro catalogs , I do have some older Duro catalogs. It really looks like the boards on the 1935 Catalog, although they don't have any punches or chisels listed. If you then look in the Duro 35M catalogs the numbers on the broad look like Duro numbers. Any ideas on this?

Check Alloy Artifacts for more information, but essentially Duro and Indestro are one company.  I have some tools marked Duro-Indestro.  More confusing is that some Indestro tools are unmarked, but clearly the same manufacturer.

Here is a photo with the board partially populated mostly Wilde tools

That shur is pretty.

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