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Marbro Lamp company was founded by Morris Markoff and his brother, hence the name Marbro from Markoff brothers. They started the company shortly after WWII. The company was located in a 3 story brick building in the garment district of Los Angeles, just south of downtown right by the Santa Monica Freeway. During the time they ran the company, they sold almost as many antiques as they did lamps.
The number 0910 is the specific serial number of your lamp. Marbro Lamp hand signed all their lamps with a serial number.
Regarding the value of your item, I have just perform a market research of similar sold items as yours. I performed the research based upon the most recent finished auctions and private sells, so the value given is the real market value of your item. This is the only way to know the exact value of your unit.
The value will be in the range of 2,000-3,000$.
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