Any more data on this exact lens?

I just found it's sister

Studio shutter, same lettering

Seems to be a custom branding for a Cleveland Photo Club


Quote Originally Posted by BluSpecs View Post
Oh and the lens reads

Portrait Lens Series C,
8x10
Fowler & Slater
cleveland, O.

Apertures run 1, 2, 4, 8, 16, 32

No other serial numbers or makers marks to be found