BELGIUM. Societe Generale de Belgique. 20 Francs, 1915-1918. P-89. PCGS Extremely Fine 45. Serial Number 3.A scarce design in any form or grade but seen here in a beautiful EF45 holder with only a mention of Pinholes in the comments, which are typically found on this note. This survivor, the finest we have handled by any stretch, has a remarkably collectable serial number of A000003.