First, thanks for letting me invade a group I normally don't visit.

As part of a truck load purchase, I acquired a Gray Military Code practice
machine with the paper tape. It is a model TG-10-J. Looks in good
condition with a practice tape.

Do these have any value to collectors?

There is also a massive Thordasen power transformer with a pair of 866A's.
Looks like a Frankenstein piece.

Any info would be appreciated.