I had 2 beaver in the last NAFA auction, an XL and a L. The L wasn't offered. The post auction NAFA newsletter (if I can find it online I'll post the exert) stated that due to lower expected prices for smaller sized beaver they were held back so my L beaver doesn't show anywhere on my account except for on my receipt. I don't know how to do a fancy screen shot but here's a cut and paste for the one beaver that was offered/sold.
118183 xl *I br 1 33.00 40.92 40.92
*EDIT* Found it.
"Beaver sold approximately 65% with a limited quantity of heavier, better quality shearing types selling reasonably well, while commercial quality, straight haired types sold at disappointing levels.
The smaller size Beavers were not offered due to reduced demand and prices at the present time."
http://www.nafa.ca/17304