International registered letter with perfin “WS&C” in the stamp. The letter is franked correctly with 70 øre, 40 øre was the rate for international letters in the period from February 1st 1921 to October 31th 1925 and 30 øre was the fee for registering in the period from March 1st 1921 to March 31th 1926 . The stamp is cancelled December 10th 1923 with København K Nr. 65, Kjøbenhavn K Bro IIIb-4. 

W 20 Wilh. Sonesson & Co.

A/S Wilh. Sonesson & Co.
Krystalgade 24-26
1172 København K

“WS&C has been seen used in the period from March 13 to October 1951



Known positions

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Green indicates the Perfin position on the current item.

This perfin is also known on Swedish stamps used by their office in Malmö