We have for your consideration a vintage 1939 A/C filter sign. It has nice color. It would make a great addition to your gas oil sign collection. Approximate Measurements It measures 21 1/2″ x 10″ wide. Markings AC Oil Filter, Replace Today, A553, Made in USA, 10/39 AMD. Condition It is in fair to rough condition specially around the edges, see pictures. See description above for further info on the condition. Inventory Number 11216 425103. Vintage 1939 A/C Oil Filter Sign > Antique Sparkplug Gas Station 11216. It measures 21 1/2″ x 10″ wide. AC Oil Filter, Replace Today, A553, Made in USA, 10/39 AMD. It is in fair to rough condition specially around the edges, see pictures. Get images that make Supersized seem small. Showcase your items with Auctiva’s. Track Page Views With.