1941 Soviet Union 20 Kopecks

Numista has 1941 as rare how rare is it. My grandfather acquired one in San Francisco mid 1950"s



20 Kopecks 7 ribbons
© Cyrillius
Features
CountrySoviet Union (USSR)
TypeCommon coin
Years1935-1941
Value20 Kopecks (0.20 SUR)
MetalCopper-nickel
Weight3.6 g
Diameter21.8 mm
Thickness1.4 mm
ShapeRound
OrientationMedal alignment ↑↑
Demonetizedyes
ReferencesY# 104, Schön# 53

Obverse
The coat of arms of the Soviet Union.
Lettering: СССР
Translation: USSR
Reverse
Value within octagon flanked by sprigs with date below.
Lettering:
20
КОП
1936
Translation: 20 Kop (Kopecks)
Edge
Reeded
YearMintageVGFVFXFUNCExchange
1935 125,165,000
1936 52,968,000
1941 Rare
grandfather

The 20 kopecks 1941 with 7 ribbons around the wreath on the reverse is rare, and is technically an error coin (mule). The regular 1941 one has 11 ribbons and is common. Are you sure you have the 7 ribbon variety?

The very same coin was discussed on the forum recently:
https://en.numista.com/forum/topic59015.html