Aladdin Model B Tan Alacite Kerosene Lamp 13 1/2 Tall Rare Vintage

This seems to be a very rare lamp. It has been really well taken care of. It was acquired from an avid lamp collector who had quite the collection.

It looks old to me but I don't know to much about it. I'm not even 100% sure what color it is. There's a picture of it in the sun and in the shade.

Please check the pictures and let me know if you have any questions.