Soviet ShMS RSh-4 Gas Mask Full Kit

Description

🇷🇺 Soviet Russian ShMS Gas mask size 1 in the RSh-4 kit Dated 1987 made between October and December in Saratov Russia, lot 847.
The kit that this ShMS facepiece would have been placed into would be an RSh-4 kit, which includes the ShMS facepiece, a fabric corrugated hose, a Type A bag, an E0-16 filter, an IPP-51 Decontamination Kit, Anti Fog Inserts, and Spare Membranes.
The E0-16 filter for this mask is dated 1961 and from the 525th lot, it is in alright condition and can fit any 40mm GOST filter on the bottom threads, this filter is stupidly scarce in the United States for some reason
The bag I have for this is a Type A haversack, it is dated 1962 and has a bit of rust on the buckles unfortunately