Swiss Gold 20 Franc Helvetia Post-1933 (Brilliant Uncirculated)
Switzerland Federal State 1947 B Gold 20 Francs Helvetia Copy Coin Brass Metal Replica Coins Collection Commemorative - Non-currency Coins - AliExpress
File:20 Franc Helvetia coin back.png - Wikimedia Commons
1927 B Switzerland Helvetia 20 Francs Gold Coin NGC MS 64 KM# 35.1 Bern | eBay