Bayonets were serialized to the rifles during the Imperial Russian era. The Soviets discontinued the practice in the 1930's and resumed it at the end of WW2. Most Soviet Mosin's you see today with a"matching bayonet" got it during the post war refurbishment program I mentioned earlier. The hammer stamp is Tula's stamp during the Imperial era, it was replaced by the star after the Russian Revolution. The bayonet you want for your M91/30 is the one with the spring assisted latch, the other type is for the earlier M91 Mosin and uses a rotating locking collar to secure it.
Great Info & thank you for the help
After I receive the rifle I'll get some info (pics) of it's markings and bother you guys some more later.