20 pfennig 1873-1877, Germany - Coin value - uCoin.net
Germany - GDR 20 PFENNIG 1971 Federal Republic of Germany 20 PFENNIG KM# 11 | eBay
Amazon.com: 7 Coins from German Democratic Republic | East German Coin Set Collection 1 5 10 20 50 Pfennig 1 2 Mark | Circulated 1960-1990 | Oak Leaf : Collectibles & Fine Art