Based upon the observed range, once could surmise that the *B/M no FPN run began at 0320001 and ended at 0480000. Thus approx 160,000 should have been printed.
But i don't think all 160,000 have no FPN, in any case this is a hard one to find. I have been looking for one now since last year.
I think its just as rare as the 1954 $2-*A/G BELOW 4.0M... Now that one took me almost two years to find.
As for pricing of the *B/M No FPN, i feel that its still undervalued in the Charlton. It made its first listing in the 20Th edition of the charlton so perhaps we'll see big jumps in price in the next few editions.
It will be really interesting to see if anyone finds/owns any *B/M No FPN outside the above mentioned range, Or any *B/M With FPN within the above range.