AEROLENE THE INDIAN OIL PRODUCTS CO. MINT SHAPE METAL SIGN… 7 1/4 × 15 1/4 INCH.. The product is a vintage original sign from Desperate Sign Co, featuring a red color scheme and dating back to 1980. Made in the United States, this sign is a collectible piece of advertising memorabilia. With its unique design and historical significance, this original sign is a valuable addition to any collection or display of vintage advertising items.