Silva Map Measure Path

        The SILVA Map Measurer Path is an analog navigation instrument with a 
pointer. Choose one of the eight map scales between 1:15.000 and 
1:750.000 according to your map, and it measures your planned route. 
Given a known speed you can then also calculate how long it will take to
 cover the rest of the trip.
As we all know a well-planned journey begins in the comfort of your own home 
and leaves you time to enjoy the trip once you are actually out in the 
wilderness. With a map measurer your trip can be planned in detail, to 
avoid surprises on the way. Daily stages linked together with the number
 of days of the trip, should be equivalent to the distance you want to 
cover, to reach your goal in time.