Imperial Hobnail Carnival glass karosene oil lamp

Imperial Hobnail Carnival glass amethyst karosene oil lamp. Base of the lamp has beautiful iridescent blue, purple/amethyst colors There is an original vintage "Imperial" sticker on the top of the base. . Painted red color chimney shade ,globe with some paint pealing off. Lamp measures about 10 3/4" tall,base measures about 4 1/2" tall. Excellent condition.$60 plus shipping.I need to know the zipcode to estimate shipping cost