I recently acquired a large lot of these coins and have some questions I couldn't find answers to; maybe someone here can help?
1) How can I tell the difference between KM# 22.1 and KM# 22.1a besides the color? They are identical except for composition.
2) Some coins have the edge lettering (5 Mark) right side up with the Obverse of the coin but others have it upside down - is this significant?
3) What does it mean (Mongolian inscription) on the error KM#22.3? There are no images.
Thank you,

