According to my chats with Howie Bearse (webmaster at Simonov.net), late 1955 and early 1956 Tula SKS rifles do NOT have the tula rollmark on the receiver cover. FYI, Tula switched entirely from SKS production to AK47 production in the summer of 1956.
I had thought my recently acquired Tula had been scrubbed by Bubba or someone else, but it turns out it's a late 55, early 56 Tula "no date" that is actually somewhat uncommon as Tula didn't make alot of these during the switch to AK production.
Here's a pic of the receiver markings and dust cover for reference:
More pics can be seen in "July Purchases"
I had thought my recently acquired Tula had been scrubbed by Bubba or someone else, but it turns out it's a late 55, early 56 Tula "no date" that is actually somewhat uncommon as Tula didn't make alot of these during the switch to AK production.
Here's a pic of the receiver markings and dust cover for reference:


More pics can be seen in "July Purchases"