Quote Originally Posted by Shawn Dougherty View Post
That compass is bitchin'. I love that it has a tripod mount. =)
Yeah, the rule of thumb was that when hand holding a Brunton, you should be able to read it accurately to within 1/2 of a degree. It's magnetically damped, so if your technique is good that's not too hard.

But if it was tripod-mounted or used on a plane-table for precision work (which also automatically held it perfectly level), one should be able to read it down to 1/5 of a degree. That's about the limit of accuracy for setting the regional magnetic declination offset as well.

Not sure what the inflation calculators say, but I'm looking right now at the original Brunton box it came in on the book shelf above me, and the original price sticker on it says $150.30. That would have been around 1982-83.

It's quite a beautiful precision instrument.