Nelco A-4-2?

Still desperately looking for a manual for a Nelco A-4-2 machine, a
photocopy or scan would be terrific. Yep, I've searched the web & the few
references I've found to this machine failed to turn up a manual. And, all
the sites I've found that offer Nelco manuals don't have this one listed ~
guess I've got an odd one.

The machine looks new (though it's gotta be 40-50 years old) & I am looking
forward to using it ~

Suggestions are most welcome.

thanks!
D.