Lot is radiation-safe element as on photo. This elements was unmounted from antiradiation vest.
Anti-atomic vest DSP I-1, because the fabric is damp, and could be used for making new vests or any radiation-safe DIY.
Quality control stamps.
Protection level special. I tested with small radiation source - it absorbs beta and gamma radiation very good. Sorry I havent numbers for calculation, dosimeter just stops blinking.
Manufacture of the USSR.
1987 year
It is designed to protect vital organs of tank crews from damage by ionizing radiation.
Filling - dense rubber with graphite. According to unverified rumors - with some fraction of finely dispersed lead.
Dimensions 55x55x23, weight 78 grams