Soviet Jubilee medal 20 years of the Workers & Peasants Red Army

Soviet Jubilee medal for the 20 years of the Workers and Peasants Red Army type 2 medal this only exists because the awardees switched the original suspension device with the 5 sided device as per regulations after the 19th June 1943 the diameter of the award is 32mm and it has a raised border of 2.5mm as it should be, the medal is of silver and red enamel approx 37,000 awards made