SSP. Maker mark "AB7789." C. 1950s Iso-vis "D" Motor Oil self-framed porcelain sign with iconic lettering. CONDITION: Sign has fair color and gloss throughout, with areas of surface staining and surface scratching. Sign has minor oxidation in the "Anti Sludge" lettering and on the left-hand side of the red border. The outer edges of the piece also show areas of porcelain loss. Overall, a nice displaying piece, perfect for any collection. This is not a standard shippable item and will require 3rd party shipping or pickup arrangements to be made. Condition: (8.25). Dimensions: 1" X 15-3/4" X 60-1/4"