Day 314-Opaline Yellow
Opaline Yellow was only a catalog color in 1986 and is therefore a challenge to find. It fluoresces when placed under an ultraviolet light source. Actually, Opaline Yellow was a catalog color in 2000 also, but there was so little “opal” in the color that the name was changed to just Yellow in 2001. The 2000 Opaline Yellow has a slight greenish tint and will not be etched as the date etching did not begin until July of 2001.