Verde Green - 1927-29 - Oversize and Standard Size Pens - These attractive pens must have been one of the most popular colors. They seem to be a little more common than the other Endura colors. These are the earlier color variation that has a lighter tint and a yellowish cast. The later version is slightly darker, richer green and lack the yellow tint. They are prone to some loss of color. This can be uniform or just on certain parts like the cap, barrel, or perhaps one side of the pen more than the other. They also seem to have a little more trouble with the lever filler pin than the other colors.