Hi,

I have in hand a Petzval -Design Portrait Lens marked A Ross London with sn 4703

http://www.flickr.com/photos/heritag...es/6781703948/

I am trying to get more detail on the nature of the lens and in particular on similar early Ross lenses that may be out there.
To be upfront: I am trying to gauge the rarity of the lens so that I don't make a fool of myself when I offer it for swap/trade (as it will be highly unlikely that I will use it)...
Any suggestions (here or comment on the Flickr photo) would be much welcomed.

Cheers from OZ
Dirk
www.ausphoto.net