The collection has a number of artifacts that are not computers or peripherals, as such. As I find time to photograph them, they might appear here…
Digital Equipment K Series Logic Lab
This logic lab is a different version than one commonly sees – the more common one has a wood casing and a white panel, and is named “Computer Lab”, and seems to have made its first appearance in the 1971 DEC Logic Handbook (where this one also appears). This one first appeared in 1970.
A yet earlier logic lab appeared in logic handbooks before 1970.