For sale is reprint of Hickok Hickok 191X Universal Crystal Controlled Microvolt Signal Generator Manual. Manual is 24 pages long and includes two 11×17 foldouts of Circuit Diagram and Signal Output Table.
Manual has no date but schematic is dated January 1945, Looks like Manual was typed on typewriter and Mimeorgraphed. No fancy Typeface Font but manual is clear and readable. Halftone images are not as sharp and clear as in later manuals.