DST. Maker marked, "A-M." A nice example of this c. 1950's tin flange sign from Kendall Motor Oil for outboard motors. CONDITION: Side 1 is essentially blemish-free with only one tiny nick in the very center of the field. The mounting holes show the slightest amount of wear, and there are very light wave marks in the field left over from the original packing paper (9.4). Side 2 is just as clean with one small blemish in the lower center field, as well as very light wave marks from packing paper (9.4). In total, this is an excellent piece that would be nearly impossible to improve upon. It certainly would be a killer piece in any collection. Condition: (9.4,9.4). Dimensions: 2" X 18" X 13-1/2"