Is this a Dallmeyer Perfac?

[fecaleagle]

A buddy saw this at an estate sale a couple of weeks ago (reduced to $35 bucks) and didn't buy it! I didn't see his text message until he was long gone... I knew it was big (too big for me actually), but I had sort of forgotten about it until he reminded me last night. The box and labeling started me thinking Dallmeyer AM, and f/6.3 turns up some Perfacs & Serracs. Is this a 20" Perfac?

120105

120106

[Pete Watkins]

It's a British lens made for the Ministry of Defense (Air Ministry, Army etc.). In the second picture I think that I can see the letters EE on the edge of the lens. If that is right the lens was made by Aldis.
That's the best I can do.
Pete.

[fecaleagle]

Thank you! I did see the EE but I was unable to find anything based on it. This is helpful! Also, now I don't have to feel so sick for letting it pass by. :)

There's a fair bit of information on it here: http://www.fredmiranda.com/forum/topic/785077