Wahl Skyline - During the time that the Skylines were in production the company needed the use the Wahl name in order to retain the rights to the name. They came out with a line of pens that are marked Wahl. They are identical to the other Skylines except for the nib and the pocket clip. These are all marked Wahl. The double check found at the top of the clip is replaced by a W or in some cases the seal is completely missing. They are found in the Demi and standard sizes and seem to be found in the plain colors.