I used to have a Nydia bank lock. I presume that it had been a day gate lock for a vault. It had a dial and two buttons visible on the lock face. The buttons were used when dialing the combination. IIRC, the left button when depressed during dialing would cause the dial to ‘click’ every five numbers, the right button caused a click every single number. The lock face was about 3″ by 5″, or maybe 4″ by 6″ and a bright polished brass surface. I traded it to a combination lock collector in Seattle, Washington for a couple of door locks that I didn’t have.
When I got that lock it was ‘New Old Stock’ and still inside the wooden box that was used to ship them. The guy I got it from had a full case of them. I have no idea what happened to the other 5 locks in their wooden boxes.
BBE.