http://www.supportproducts.com/pdfs/SPcatalog.pdf

...PR182A offers adjustable focusing and a sturdy metal alloy construction of both stand and lens housing constructed of two-coated achromatic photographic quality lens systems, each with two elements. Comes with lens cover. Part# Description PR182 6X - 1 ½" x 1 ½" Viewing PR182A 6X - 1 ½" x 1 ½" Viewing Part# Description...

http://www.unigraphinternational.com/en/productprofile.php

...and metal plates. 256 - Uni Lithofount P.C. An acid fountain solution, pH-buffered, formulated for all water conditions on any press and dampening system combination. Phosphate and chrome free, contains non-piling additives, very low VOC's. 258 - Uni Lithofount 2005 SF 263 - Uni Lithofount 5 Star SF...