This airplane started life in 1931 as a Great Lakes 2T-1A "Sport Trainer".

 

In a former life , with unknown engine.

It was originally powered by a 90hp American Cirrus inverted inline 4 cylinder engine. Much of the original exists in what is now a "Great Lakes Special"

Some of the differences from the original 2T-1A include:

 

Click on any image above for a larger version

Aviation Picture Page  

 Link to Great Lakes Site