Lens identification

I hope someone can point me in the general direction of some info on a couple of old lenses I recently picked up with a job lot.

Included in the lot was a home-made 6X7 monorail bellows camera with two lenses - a Zeiss Ikon (CZJ) Tessar F=13.5cm 1:4.5 with Compur shutter and a Bausch & Lomb Optical Co Rapid Rectilinear but I can't find the focal length or ratio on the B&L.

Any info would be helpful as I know very little about large format equipment.

Cheers

(there was a url link here which no longer exists) Have pasta on hand.