Gunbroker is a very dangerous place for a newbie to purchase a K98k, but you have found the right place to learn and eventually find one. Posts such...
Holy shit.... sometimes I just want to reach out and strangle these people.... both the the seller and the bidders. Absolutely everything about this...
To add to the deviations, Mauser-Oberndorf began using the suffix to denote the month in 1943; January-no letter, February-a, March-b, April-c, etc....
That's why I like Mauser Oberndorf rifles. Their numbering just seems so much more crisp than a lot of other manufacturers. Heres my byf 43's channel...