They are VERY hard to find in the US. I have two. The first was printed by NIST on very thin plastic as SP376. It was sent to me as "welcome swag" when I joined USMA. I also have a beautiful clear plastic (prismatic) one given to me by supplier. Both are 300 mm.
I tried Googling. I turned up a lot of links in Australia, New Zealand, the UK, and South Africa. I did find two that appear to be US. I have NO experience with either company; it is just the result of a Google search. There are 300 mm, with no inches: http://metriconlystore.com/index.php?main_page=product_info&cPath=7_12&products_id=58 http://www.thesolutionofficesupplies.com/Acme-Double-Bevel-Wood-School-Rulers_p_167860.html ________________________________ From: Robert H. Bushnell <[email protected]> To: U.S. Metric Association <[email protected]> Sent: Wed, June 22, 2011 5:39:05 PM Subject: [USMA:50716] millimeter rulers for school 2011 June 22 USMA I just tried to buy rulers without inches for school students to use. I found none. Staples here in Boulder has none. The manager said in his ten years he has never had anyone ask for rulers without inches. The big hardware here in Boulder, McGuckin, has none. They have carpenter's tapes 3 m and 5 m, but they all have inches along with mm. Please tell me where I can get rulers without inches. I have USMA 200 mm rulers. They are OK with me. Is there no other retail source? School rulers are 12 inches long. I do not know if schools need 300 mm. Having inches along with mm on the ruler always keeps the inch value in front of you as you use the ruler. This is a strong impediment to leaving inches behind. If one is to use metric, inches simply must never show up. Please help. Robert Bushnell
