So.. Preface: I got old 8x10 studio camera for parts/restoration/hacking.
It came with wee petzval, attached to one of them 9x9 lens boards, which looked really funny, but hey. Who am i to question?
I looked around forum and internet in general and looks like R.Morrison was tech who went off to make his own line of labeled landscape lenses.
It measured around 18-20inches focal, and about f8 open. So i figured - yes, that sounds right (in old days it was recommended to shoot landscapes with longest lens you got, unlike today, when we are all after super-wides for those).

Anyhow, i remounted it on 6x6 board i had laying around.

R Morrison Lens by Sergei Rodionov, on Flickr

Doesn't give much of swirl on 8x10 (none in fact), which is spiffy for landscape. Has interesting very slight aberrations (even when in focus, still see some surrounding hazing in fine details like far away branches) or may be its just my eyes, that do give up.

So today i decided to test it at last, as it a bit nippy in Dallas to go and shoot landscapes with collodion

So here it is on film.