For a model #850 DC Power Supply. Printed September 1965. It is in good used condition. It had a receipt stapled in in the front(pictured). 

I only ship to the lower 48 United States. Everything is used and described to the best of my abilities. Items are sold AS IS, so look through the pictures and description carefully before bidding. I only accept winning bids from buyers with at least 10 feedback.  If you have any questions, please ask.