Vintage Naef Wooden Stacking Bocks - Set of Seventeen vintage birch bark box and I'll never resist them

and I'll never resist them if I can afford them (which is

WWII I am guessing and made of heavy tin

and the much worn away black paint on the steel plate is perfect

floral and otherwise

but this is #7

Vintage Naef Wooden Stacking Bocks - Set of Seventeen vintage birch bark box and I'll never resist themThese were a happy find the other day at a favorite shop in New Hampshire I've had a couple of rare sets of colored blocks of the same form designed by renowned Swiss carpenter and designer Kurt Naef (19262006) in 1954, but had never seen a set of unpainted wooden ones, though I have since learned that they were produced. No box with these and they are unmarked, but it's quite clear that is what they are, and all signs point to this being a. mid