Posted by Klaus on February 05, 2003 at 11:53:19:
system?
I find a Mira BBb 4RV and see it having the alleged model number of 408 H.
Checking up with my circa 1993 catalogue lets me see the 186 models being close in appearance.
Found instrument hopefully appears above here. Catalogue page accessible though the link given below here (very large .pdf file).
Klaus