l&l wmc 1971 lamp with glass

I have a set of these lamps and this is the only image link i could possibly find and i'm looking for an estimated value of them.......If you could help at all it would be greatly appreciated.  thanks, Natasha.

These are pretty standard late 20th century Decorator lamps we'd retail a pair for about $150.00, they go forless than Half that at auction.