By sseeger2, 29 May, 2009 Category Scientific Instruments Medium brass Distinguishing marks bostrom brady mfg co Condition Good Date Period 1940 Long Description surveying equipement eBay Auction Link For Sale? No Log in or register to post comments Select ratingGive it 1/5Give it 2/5Give it 3/5Give it 4/5Give it 5/5Cancel rating No votes yet