Page 81 - Gustaf Douglas: Classic Sweden

THE 20:TRETIO ERROR

Six usages with the 20:TRETIO Error on letter mail are recorded,
four single frankings and two vertical pairs.

First Letter rate from STOCKHOLM 3.3.1880 to England (U.P.U.’s 2nd group 20 Öre in force from
1.7.1875 until 31.12.1894). 20:TRETIO Error (with cut perforation) = correct rate.

The vertical pair with the 20:TRETIO Error on cover (two exist)
are among the most important covers in Swedish philately

Second Letter rate from MALMÖ 25.3.1880 to France (U.P.U.’s 2nd group 40 Öre in force from 1.7.1875 until
31.12.1894). 2 x 20 Öre (20:TRETIO Error ) = correct rate. The whole chain of ownerships is recorded:
Jordell, Benzinger, Brun, Strauss and Douglas