Marty,
The clear plastic cap was used on the 100, 1x2/3,1x4/5 etc., but the decal in the cap was different depending on the model. The 100 decal was the IH. The 1x2/3, 1x4/5 used the "starburst" decal like you posted a picture of. The plastic cap it self was the same on all models that used...