Photogravures
Woodburytypes
Rotogravures
Photolithographs
Photoengravings
Photocopies
Photochrom prints
Offset photomechanical prints
Line photoengravings
Halftone photomechanical prints
Collotypes
Anaglyphs
Stereotype printing block with zinc plate on wooden base, National Mutual Group of Companies logo
Stereotype printing block with zinc metal plate, National Mutual Low Cost Unit-Plan