The base seat is almost the same, but the differences DKW vs Germany IZH are visible welded base plate, the Russians because of the poor quality of steel used used a welding.
Moreover, not mounted to the bike based seats can be observed differences in shape.
Rubber Soviet seats in the formula which can be seen on a motorcycle above are produced from the 50-ch today, hence their noticeably better quality.
Original rubber Pagus I only passenger seats, rubber replica of driver quality are produced in my country ./Polska/

google translate
original and replica
Soviet rubber seats from the years 1944 to 1950
