Document Type : Maps

silva wrist compass on leather strap with metal buckle a b brod kjellstrom stockholm sweden 63 usa pat 2186970 back of early navigators needed protractor to transfer bearing map or chart until swede gunnar tillander came along in 1928 and.............

curvimetre map measurer in plastic case with data sheet on dial inches an opisometer amilograph and a are all names for measurers used by outdoor folk engineers etc to measure distances the curvi bit implying that it doesn t just.............

mils military compass in original case on packaging explore the great outdoor map lanyard tracpac most people know that for navigational purposes a normally has circle containing 360 degrees though not everyone knows this is always since around 1960 have.............

map measurer in original box on the clicker 1460 mile recorder patent 422611 british made velos trade mark for any scale example 1 4 clicks to this is a little gem that dates from 1950 long before we had computers.............