US Air Force
B-29 Superfortress Inspection and Maintenance Guide TO 00-20A-2-B-29
Here is an Aircraft Inspection and Maintenance Guide for the Boeing B-29 Superfortress bomber of the US Air Force dated 1948.
This 8 inch by 5.5 inch, 80-page manual specified inspection and maintenance frequency and procedures, such as Preflight, Daily, during Engine Change, or elapsed flight hours, for all aircraft systems.
It is certainly 'experienced' but that's what makes it special in our opinion. It appears to be complete with no rips or tears.