Although it may look lighter than the coins, if you enlarge it you can see the gold color, it’s just lighter. You’re looking at an unrestored 84 year old machine, hands rubbing on it have lightened it over the years. If you look at the coin entry you can see the bare aluminum around it where the tinted lacquer has completely worn off. Only the cast in horns were painted with the tinted lacquer. The removable horns were chrome plated and sometimes just polished brass, these were usually found on Bird of Paradise slots.
George