No evidence I know of.

The hashmark was engraved on the master die before the mold was made.

I only guessed 1946 as it had to be post-war. 1947 would work.
Remember that 1952/53 has always been quoted as it is the earliest date in the records. The records only exist from 1953 (everything prior destroyed by fire).
Now, those records are only for inlaid chips. Burt Co never hotstamped a chip in their 76 years, they sold blanks to distributors. So who knows what the earliest use was, some hotstamped chips could be from the 1930's.
1952/53 is wrong for inlaid anyway, I have chips from 1948.