A manual for the jc Higgins model 80 pistol?

Same as High Standard model 101 Send me your email & I'll send you a scan of the original HS manual.

Here are original Sears documents

http://www.histandard.info/manuals/sears/pistols/0451D150R.pdf

http://www.histandard.info/manuals/sears/pistols/0452D150R.pdf