Aladdin Lamp
I know nothing about this kerosene lamp in marigold on milk glass other than that it sold at a Jim and Jan Seeck auction in November, 2013 for $170. It has an "A" mark on the bottom, presumably for Aladdin.

Similarly shaped lamps without iridization can be found on eBay for under $100. The company, Aladdin-US, sells such lamps for around $200.