International letter with perfin “WS&C” in the stamp. The letter is franked correctly with 25 øre, which was the rate for international letters in the period from January 1st 1927 to October 31th 1933. The stamp is cancelled March 31th 1931 with TMS Nr.15.8 København OMK.
W 20 Wilh. Sonesson & Co.
A/S Wilh. Sonesson & Co.
V. Voldgade 133
1552 København V
“WS&C has been seen used in the period from March 13 to October 1951
Green indicates the Perfin position on the current item.
This perfin is also known on Swedish stamps used by their office in Malmö