In regards to FranGois Pineau's message about his friend's sundial. I personally don't know any specifics about that, but the planetarium in Lansing, Michigan (on the MSU campus) is called the Abrams Planetarium after Talbert and Leota Abrams. Hopefully this will provide you with a clue to history of the object mentioned.
(It's not a business so this probably won't do you any good, but I researched this address:Talbert & Leota Abrams Foundation, 1000 Michigan National Tower, Lansing, MI 48933-1736; Telephone : 517/482-5800) Troy Heck Ortonville Michigan 42°51'05"N 83°26'39"W == Quoted Message == I am interested by sundials. With a friend we search for information about a type of sundial used by US ARMY in north Africa during the world war two. My friend possess one exemplary (see the picture) but we would like to now more information about utilization, history ... This object is a "Sun Compass" his name is "PROTRACTOR" it was built by the company "ABRAMS ? ? LANSING MICHIGAN" Thank you to send me all information (pictures, text ...) Thanks also to diffuse this message to all amateurs of sundials you know. Thank you very much for your help.
