Here are images of the six stamps in an "Iron Mining" booklet issued by Sweden on August 27, 1991, Scott Nos. Facit Nos. 1691-1696. All six stamps were engraved by Martin Mörck.
- nethryk
The Spetal mine, Norberg, (mine map), designed by Swedish painter Ulf Wahlberg (1938- ), after an original drawing by Swedish iron mining leader Carl David af Uhr, (1770-1849).

A Walloon forge at Forsmarks mill, after original artwork by Swedish artist J.W. Wallander (1821-1888).

Bar iron forging at Svartå, Närke, designed by Ulf Wahlberg.

Welding at the rolling mill at Smedjebacken, designed by Ulf Wahlberg after original artwork by Swedish "work" painter Johan Ahlbäck (1895-1973), whose father worked at this mill.

Dannemora Mine, designed by Ulf Wahlberg after an original painting by Swedish artist Elias Martin (1739-1818).

The blast furnace at Pershyttan, Nora, designed by Ulf Wahlberg.
