Description This large mahogany linear astronomical slide rule is covered with strips of German silver. There are two slides, each of which have scales on both sides. Each slide has a knob near one ...

One outside edge has scales for 10 and 12 parts to the inch; the other outside edge divides one foot into 100 parts. This form of slide rule was invented by Joshua Routledge, a seller of iron goods, ...

Struggling to master the spatial design of your small kitchen? You can safely dismiss these inapplicable rules, say designers ...