Help identify my ride

Unknown

I have an Essex 2 dor sedan that I have thought was a 1925 for years. I was told that by the previous owner. The car has no serial number as it was pieced together from 2 other vehicles back in the 1960's. After looking at various photos, I am thinking it is a 1924. I have another 1925 and the windshield is different. The windshield on the latter is rounded at the bottom, but the one on the '24 is square. Are there other idnicators as to model year between '24 and '25. Thanks. Photos can be seen...http://www.hemmings.com/users/157192/ride/1851.html