Sweden. Facit 138cx used, 1920 Air Mail Surcharge 50 öre / 4 öre violet inverted wmk lines in BLOCK of four. One stamp with digit 5 damaged variety. Cancelled STOCKHOLM 30.6.1921. Certificate Lorentzon 1–2, (3,3,2,2), (4×1). Ex. Contenta. SEK 24000+
A buyer’s premium of 25% plus a 20 SEK lot charge is added to the hammer price