Question about scratch engraving on AK-74's
Pardon my ignorance yet again, but was the scratch engraving on, let's say, a '83 AKS-74 done only in 3 places visible on the outside of the rifle? Selector, top cover, and gas tube?
Also, as far as the top cover is concerned, was there no number engraved on the rear where the recoil rod end pokes out like on the Bulgarian models? Was the only place a number was engraved on the front left side of the top cover? Was it only scratch engraved just above the trunnion?
Thanks in advance.