Summer 2021 • WINCHESTERCOLLECTOR.ORG | 17 5. For the Special variations, the stock checkering was more finely cut (denser LPI) on the pre-WWII rifles than it was on the post-WWII production rifle stocks. The rifle shown in the upper half of the image is s/n 7868, with the lower half showing s/n 32720. Note the visible difference in the density of the checkering. Photo courtesy of the Joel Goodrich collection.