[Looking4] Vigor manual engraving machine manual

Greetings!

I am looking for an owner’s manual for a Vigor manual engraving
machine, model EN-775B. There was a post on the forum a few years
ago from John, The Jewelry Equipment Doctor saying he had manuals
for several types, would Dr. John maybe have one for this model? If
not, I am hoping another member here might have a suggestion.

Thank you!
Lora