Seeking advice on a 6 in to 7 in barrel lens for 5x7

[LFLarry]

I have an early 1900's 5x7 camera, and I would like to find a barrel lens that would be considered a wide angle for 5x7 format, something in the 6 in to 7 in range would be good. I plan to use it for wet plate collodion landscapes.

Any ideas of what I can search for?

Thanks for your help.

Larry

[fatherdougal]

Are you looking for something in a brass barrel? Maybe something like a primoplane or a perigraphe could be of interest? Worth checking out!