Deardorff 4X5 Special

Who knew.  I bought a brass pile of junk a couple of years ago to get the size 4 brass Studio Shutter.  It was a weird mess.  Layed out like a petzval but obviously missing parts and mis-matched.  Today I thought to remove the rear group and put the front doublet in the back like a landscape meniscus.  Good call.  It now focuses at 13" f4 and has a wonderful look on the glass.  Very soft wide open but this was stopped down to about f11.  I have no idea what it is / was!