The sign is from Ugly Duck Car Rental. During the boneyard tour the sign was highlighted as an exceptional example of the technique of neon sign fabrication. The glass tubes are all hand formed into an intricate pattern. The sign maker has one chance to get the glass tube bends correct. One interesting fact is that YESCO's policy was to lease their signs. If a sign was no longer wanted then YESCO would take it back to their storage lot for possible re-use. That's why so many old signs have been preserved.