Soviet Russian M 42 universal artificial leather holster, ww2 period made.

Soviet Russian M 42 universal artificial leather ("Keerdza" in russian) made holster, marked with stamp "OTK", such stamp never seen with other dates than 1942 or 1943 year.  Unfortunately last digit impossible to read, due marking came out of the holsters field. Fit to most  small firearms.  Mint condition. Original item ww2 period made.