Unfortunately not Col, but I did find this snippet, which you may have already seen, that did interest me. Not sure it's the one you want it's designated as the 204/6 (8inch f/6???)
http://www.istar-optical.com/phoenix...refractor.html
There is also a wider field 150 f/5 maybe that's the one you meant, ....
http://www.istar-optical.com/istar-1...o-doublet.html
Best
JA