Decal says:
PUROLATOR THE OIL FILTER PUROLATOR PRODUCTS INC NEWWARK, NEW JERSEY - PAT'D & PATS. PENDING TO CLEAN 1. STOP ENGINE, DRAIN PUROLATOR, REMOVE ELEMENT 2. WASH ELEMENT THOROUGHLY IN FUEL AND REPLACE WARNING DO NOT USE WIRE BRUSH OR SCRAPER
FILTER CARE SAVES ENGINE WEAR LICENSED UNDER WELLS PATENTS
