Here is a little information on the Tydol to Flying A transition. I am not 100% sure this is how it went. If some one knows for sure hopefully they will let us know. This first change in the transition was to add decals to globe lenses and to the ends of shoe box bodies. The first picture shows a decal on a Tydol globe. The second change was to make new globe lenses and shoe box lenses with a winged "A" added below the word "Tydol". The third change added the word "Flying" in between "Tydol" and the winged "A" and the last change deleted the word "tydol". The second picture shows some different changes in shoe box lenses.