I found this Motorola MEK-6800-D2 "Evaluation Kit II" at a consignment store in June 2015. I don't know a whole lot about it, other than the fact that it was offered by Motorola around 1976, following up from the original MEK-6800-D1 (which apparently sold for $300 in 1975). As the name implies, it uses the Motorola 6800 microprocessor. It is made up of two separate circuit boards, the Keyboard and Display Module, and the MPU Module, which are connected together by a length of ribbon cable.
As the following pictures show, it was acquired in unbuilt form, and the only known defect is that the shrink-wrap over the Keyboard and Display Module parts packet has been broken by the ribbon cable which sits between two of the binder rings. As far as I know, none of the parts are missing, though I'm not sure if either of the two manuals between the parts packets contain the instructions on how to put it together. I have yet to decide what to do with this unit.
Top of Evaluation Kit II binder
Keyboard and Display Module parts packet/ribbon cable
System Design Data
Programming Reference Manual
MPU Module parts packet
Keyboard and Display Module circuit board
Microcomputer Module circuit board
Three additional manuals