There are two BRX issues. Royal Canadian mint issue, Circulation issue.
If i read correctly your not falls within the Royal Canadian mint issue, if this is right then your note is only worth $7 as oppose to $115 (circulation issue). I could be wrong. The info given on p.298 is not quite clear.
The following $2 replacement notes, prefix BRX, were supplied to the Royal Canadian Mint (68,000 notes):
Notes numbered 3440000-3459999 and last three numbers lie within the range 275-474 or within the range 775-974
All notes numbered 3460000-3519999.
Those anyone know what they mean?
It's clear once you wrap your mind around what they are saying in the catalogue. It just takes at least a couple of reads. In the range 3440000-3459999, only some sheets were used by the Mint, and those notes have the last three digits 275-474 and 775-974. That's 200 out of 500 sheets used by the Mint; the rest were used for circulation. The note belonging to gilmer falls in the serial number range, but the person's note ends in 695, making it a circulation issue, not a Mint issue.
All notes numbered 3460000-3519999 are Mint issue and thus are worth very little.
Obviously, there is confusion created by the overlap of the serial numbers for the Mint issue and circulation issue replacement notes. This confusion may effectively drag down the value of circulation notes. It's funny how paper money collectors completely reject notes issued for sale by the Bank of Canada. Coin collectors do the opposite. Canadian coins dated 1991 are scarce, but 1991 Mint sets are no less common than sets of other years, and collectors pay a premium for the 1991 set. I assume that's because coins lack serial numbers and can be taken out of sets and used like regular money, in which case they become indistinguishable from circulation issues (even though NCLT coins are struck with distinct finishes compared to business strikes).