This compass
features an ergonomically designed base plate, so it
fits comfortably in your hand.
Silva
Explorer
Silva Explorer
features:
The extended base plate has inch and 1/10 mile direct
reading scales that meet U.S.G.S. standards. 1:24,000
and 1:62,500 direct reading scales ensure accurate mapping
and plotting. 2° dial graduations and built-in magnifier
help you read map details. Declination scale lets you
make quick adjustments of map bearings to field headings.