International letter with the perfin “ACI” in the stamps. The letter is franked correctly with 10 + 30 øre = 40 øre, which was the rate for international letters from February 1st 1921 to October 31th 1925. The stamp is canceled December 30th 1922 with a whole letter cancellation machine Tp. SP. 4B. K K. Bro V

A15a A.C. Illum

Illums bolighus
Østergade 52-54
1100 København K

“ACI” has been seen used in the period from March 1918 to December 1928


18 13 11

Known positions

This is the first time position 3 has been registered

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Green indicate the Perfin position on the current item.

A.C. Illum the famous furnishing store was founded 1891 and still existing in Copenhagen.