The NETHERLANDS NEUTRAL during WWI, BUT …. 1918 x 2 with SAME SERIES & SERIALS 2.50 GULDEN FORGERIES. VERY UNUSUAL
The counterfeiting of the currency of the opponent or different faction was a long standing practice used by; the Duke Galeazzo Sforza of Milan in the 15th Century, by the British in the hopes of bringing the Continental US to their financial knees, the British, the Germans, the Turks etc in World War I, the Germans again during WWII etc. So, who done it ? Locals, the British, the Germans or ?