Very nice. I have a WA issued cadet action, which I have been attempting to restore for a number of years, and you must have been there at the right time to get a WA marked butt.

The 32.20 stamp may be to get around the restrictions on military type weapons during/after WWII. The 310 was a military round and were supposed to be handed in, so by being stamped 32.20 they were not a military rifle anymore.