Here are four different versions of the Russian AK47 bayonets and scabbards. Descriptions are according to MDI's book. Left to right as follows: Early pattern, hand etched serial number on the left side of pommel, smooth leather hilt strap. Next, later pattern, number stamped on the right side, pebbled leather strap. Next, later pattern, stamped number on right, synthetic hilt strap. Last, a reworked pattern with hand etched number on the left, two band hanger bracket with different method of hanger assembly. Note that all four have a drain hole in the lower front of the scabbard and ALSO all four have a diamond shaped proof mark of the right side of the pommel with 2 letters, (CB?). All for hanger hilt straps are attached to the hanger fabric with a single rivet. M.