What Wombat said, I've had a few blocks with Police numbers over the years.
2 of these were brand new- when you bought one from BMC it had no number so you went to the local Fuzz with your block and receipt, and they issued you one. You then had to go get it stamped, and take it back so they could check it.
The code is a national one-
V is Vic (N- NSW, Q- Qld, W- WA, S-SA, etc.)
next 2 digits are the year, followed by the allocated number.
Last letter is always P, (for Fuzz).

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
