For sale is reprint of Precision Apparatus Company Tube Tester model 10-12 10-15 Manual. 20 pages long, Manual comes with Part List and Circuit Diagram. Date on schematic is June 12th 1947. Tube test data is 42 pages long, dated April 1st 1974.
If you purchased one of those testers from Ebay and it did not come with Manual, here it is. Looks like Manual was Mimeorgraphed as it was printed one sided.