Dallmeyer 9-inch f=5.6 Dallon Tele-Anastigmat

[ausphoto]

Hi
Can anyone be so good and guide me to a resource that allows me to accurately date this lens? I have found some Dallmeyer serial number lists on the net but none cover this number..

Dallmeyer 9-inch f=5.6 Dallon Tele-Anastigmat Lens nº 119848

Thanks heaps!

[Dan Fromm]

Per P-H Pont, 1925-30, probably 1930.

[ausphoto]

Hi Dan, Many thanks..can you give the reference to me in a way that I can cite the source in an item I'll be working on for Camerapedia? The Dallmeyer was built onto a custom-made Forth Derby..