Does anyone recognise these boards please

[jim stephens]

On 10/5/2018 5:38 PM, Kevin Parker via cctalk wrote:
> Be most grateful if anyone can advise here please. Rescued a TRS-80 MC10 from deceased estate recently - it was headed for the bin
> but got saved.
>
> The original owner was a bit of an electronics hobbyist and his brother-in-law tossed these boards in with the bundle I grabbed.
>
> http://koken.advancedimaging.com.au/index.php?/albums/boards/
>
>
>
> Kevin Parker
Datum is known for computer equipment and timing instrumentation. The 
era of such trainers seems a bit late for them, so maybe a different 
part of it.

Obviously the other thing is a trainer board with analog and digital 
bits around the proto area.
thanks
Jim