Stickney Rotary Press Coil Stamp Production In Pictures. The U.S. Bureau of Engraving and Printing (BEP) supplied Sweden with the same equipment which was used to print U.S. coil stamps.

Small Stickney rotary printing press for printing coil stamps in long webs

Stickney bar perforator for perforating coil stamps in one direction only either vertically or horizontally

Stickney coiler for cutting up coil stamps into separate rolls/spools of long coil stamp strips

Stickney coil strips with different perforation gauge and hole size
Upper row coil stamps are perforation 10 gauge with larger perforation holes. Note one row of smaller perforation holes along the ink line.
Lower row coil stamps are perforation 13 gauge with smaller perforation holes.