If so you'll recognize these tools by Alvin I picked up for a song. A beam compass, part of another beam compass or trammel points, compass, knife, proportional dividers and TWO equal spacing dividers; all for less than the value of proportional dividers alone. Seller had $50 or best offer, I didn't even muck about with the best offer, I just clicked buy it now as fast as possible. :thumbs_up