All I've done is wipe the dust off. However it will be very expensive, the ring on this sign is cast iron. The item "HUGE PORCELAIN CITIES SERVICE Station DSP Pole Sign GAS OIL Display 6 Foot!OLD" is in sale since Monday, April 24, 2017. This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs". The seller is "antique_illumination" and is located in Indianola, Iowa. This item can't be shipped, the buyer must pick up the item.