Based on the non-oval - non-circular head shape (the pointy tips) I would say, not Billings, not fairmount, not moore, and not williams. However, while vlchek did use that rather odd head shape, so did a few others...
PS: After peeking at AA's collection, the fact that the wrench has made in usa, but no die mark bothers me less, as there are several Vlchek wrench like that , clearly marked with a logo.
Stray note, in 1930 at least, chrome doesn't seem to be an available finish for Vlchek however 'white nickel' was...(But wrenches finished in nickel , for regular tools were supposed to be marked with sizes...) Seems odd to have a finish on a toolkit wrench tho....