The humidor jar has a slot on the lid that was used to hold moistened towels

which has an aged

page foxing and loose binding

would also make a fun drink glass

Vintage Italian Slide Rule by Mo. Mattei World Word II Era Artillery Tool Lowell_House_tile The humidor jar has aA rare, Italian Slide Rule by Mo. Matte. The Regolo Di Convergenza (Artllery) ruler is housed in a beautiful wood case. The ruler information from the Slide Rule Museum: Front Scale: 48cm b [ d , (1600 3199), (1600 1) ] b D \\ 1: 25000 Back Slide: [ Sen., Cos., tg., L ] Back: Instructions (Italian) Interesting World War 2 era tool; the ruler measures approximately 20 3 8" long and is in good vintage condition. The celluloid covered mahogany ruler has