showing Irish Sea with Saint George's Channel and North Channel

) one in flight was an experience not to be forgotten

It was widely used during the 17th and 18th centuries in scientific debates over the relative merits of the competing central Earth and central Sun theories

With a case design reminiscent of an antique pocket watch

the E-type also became a symbol of the glamour and excitement of the ‘swinging’ Sixties

Navigator's Magnifier, Antique Finish, 6.5cm COAST showing Irish Sea with SaintThis handy chart weight contains a magnifier which swings out to help study those important intricate details. Antique brass effect case measures 6. 5cm diameter.