Sweden 1964 Test stamp and 1967 issued stamp.

In 1964 Sweden's stamp printing office acquired a new three-colour stamp printing press , and they produced test stamps to test the new machine. These are original  Cathedral test stamps, the die of which was engraved by Slania. 

 

It was issued in 1967 denominated 4k50 stamp

and depicts the interior of Uppsala Cathedral.

Sweden 1974 and 1976 Use of 1964 test stamp at Stockholmia 1974 and Hafnia 76

In 1974 the engraving was used to make up promotional booklets (with no value), which were handed out during the Stockholmia 1974 show. 

Hafnia 1976 saw a multi-coloured version

Test stamps for the coloured version of the stamp.

.