Does anyone have a copy of the (DEC) MS11-M tech
manual, EK-MS11M-TM? 
 This section of fiche:
 
http://bitsavers.vt100.net/pdf/dec/pdp11/xxdp/fiche_200dpi/0252_Index_81-06…
 suggests (on page 26 of 171) that the manual was available on fiche, as
 EP-MS11M-TM-001, dated May 1980, but I can't see it quickly in those
 available on Bitsavers. 
 
Ah, that's a good idea, though.  I'll check my fiche tank.
John