Solid silver, enamel; measures 37.2 mm in height incl. eyelet, 32.1 mm in width; weighs 20.8 g not including the suspension and connecting link (the medallion is significantly heavier than the later, more common version in silver-plated brass). Features the Roman numerals "XX" on the obverse designating the KGB issue. The reverse is left deliberately blank beside the inscription "For Irreproachable Service".

In outstanding, excellent condition. The enamel is pristine and exhibits a beautiful luster; it is completely free of even the microscopic contact marks that could be found under a 10x magnification. The raised details of the artwork are likewise perfect and crisp. Very attractive dark patina to silver throughout. Comes on an original aluminum suspension with a perfectly preserved clean old ribbon. The silver connecting link appears to be original, and its ends are still joined with solder in a seamless manner typical of the Soviet mint manufacture.This is a truly perfect example of the early version of the KGB Medal for 20 years of service.