Height is obscured by the ruler, but it is 3 1/2″. I can’t recall where I read about it, but I think the lettering on SCELBI enclosures is rub-on Letteraset or equivalent. It was clear coated after being applied.
Here are some pictures of the binding posts.
This picture also shows how the opposite pairs of pins on the edge connector are bent and soldered together. This can be seen toward the right of picture where a couple of wires connect to the edge connector.
I have images of the cassette interface unit at the CHM and the wiring was done with two color purple and red wire, so the tech must have used whatever he had available. The edge connectors on that CHM unit are blue and marked 67040 over 6748. It’s hard to tell from the images that I have, but I think those CHM connectors had a single row readout. The overall form of the connector design in the CHM unit seems to be a fairly close to match these AMP units. However, the color is wrong and the wire wrap lead length of .75″ is likely to be too long.