can anyone identify this terminal keyboard and pcb?

[COURYHOUSE at aol.com]

Well the  frogs never  were  usable as a async  ASCII  terminal..
for  some reason I think  they were intended  for   IBM... The  white later 
 ones  with detachable large keyboards  definitely   were  for IBM and were 
used  with a   cluster terminal controller  if  memory is  correct...
 
if they were ASCII  were sync  not async?  My  memory escapes me at this  
point except for the fact none  of  us  could use them and we call scrapped 
them! 
 
 
In a message dated 8/14/2016 3:36:00 P.M. US Mountain Standard Time,  
linimon at lonesome.com writes:

Heh,  that sounds like the description of the Hazeltine terminals we
were forced  to use on a long-ago project.  The vertical hold ... didn't.
It was  plus or minus 2.  After using the monsters for an hour or so you
had  to go walk outside until your own vertical hold settled down.

I imagine  anyone who easily got seasick could never had used them at  all.

mcl