3 3/4” diameter at marked base

page foxing and loose binding

uncorrected proof

Most likely Scandinavian made

which has an aged

Vintage Italian Slide Rule by Mo. Mattei World Word II Era Artillery Tool Lowell_House_tile 3 3/4” diameter at markedA 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