In this Revision of the TC-37, there are many interesting entries.
For example, the electrical section is 77 pages compared to the 44 pages
in the latest version of the TC-37F. And, you will also find the parts breakdowns for the WICO Magneto which is nice to find.
Also, the Engine section has been removed and republished under the ENG-1 Parts Catalog ... If you click on the link to the Engine section above,
it will take you to the ENG-1 Parts Catalog Section A for the C-60 Engine.