October 4, 2026 Automobilia & Petroliana
The live portion of this session begins on Sunday, October 4, 2026.
Lot #1328:
EXTREMELY RARE ZEROLENE MOTOR OILS CRANKCASE CLEANING SERVICE PORCELAIN SIGN.
Double-Sided Porcelain Flange. C. 1910s. Standard Oil Company of California. CONDITION: Bright color & gloss throughout with each side, showing mint condition graphics for both Zerolene & Calol, each showing a different Bear graphic. Each side showing only minimal chips in the outer fields, heavier chipping on the flange with some light chips along remaining outer border. An incredibly rare piece of early Standard advertising that never comes up for sale.
Condition: (8.25+).
Item Dimensions: 23 - 7/8" x 17 - 1/2" x 2" Flange.