From my CAT Ten 1929 PT3090 - left seat side sheet metal. You can see the placement of the original decal.
The letters are red with a bright silver border at the edge. Tractor was originally grey (also evident) and later painted yellow.
Rick Walsh[attachment=16956]CAT10_decal.jpg[/attachment][attachment=16957]cat10_decal_wide.jpg[/attachment]