DeVlieg Spiramatic Jigmil 2B, 3H, 4H and 5H. Sales and Technical
Specification Catalogue with Accessories and details of the Herbert Datatrol
Controls (dated 1959) 38 detailed pages

DeVlieg Spiramatic Jigmil 2B, 3B & 4B with Micropoint Tool & Cutter Grinder.
Sales and Technical Specification Catalogue with Accessories. 24 detailed
pages.

DeVlieg Tape Dialin (Herbert) Electrical Systems Manual with 19 Electrical Schematics. As used on the DeVlieg Jigmil Models 2B, 3H, 43H and 4K

Pratt and Whitney 2B Jig Borer. Operator's Instruction Book.