#MS090 Set of 3 Different Dental Laboratory Advertising Postcards You get 3 for $1.50 (that's 50¢ each). These are very unusual. They are vintage unused old stock that was found by a friend of ours in Detroit who loves looking for this stuff too. We bought the whole lot of them. They are paper and 10 1/2" tall. The one side is a letter to Dentists advertising the services of Northeastern Dental Laboratory who made prosthetics for dentists. They were located in Detroit, MI. The reverse of each one is different. They have beautiful scenes in France. Colorized stone lithos. This process was used in the 1940s and so that is when they were made. They could be folded in three parts and have a postage paid permit mark on the one part. These would be beautiful framed and every dental collector should have a set. They are nice. One is a church outside of Paris, another has pictures of Angers and Josselin, another Castle Robert at Falaise, another Laval and Amiens, and the last is Mont St. Michel. Each also has a detailed description of the picture. Never saw anything like these before. $1.50