Yes they will work if they fit the fixture.... They will only draw the 20 watts they need to operate, so No, you will not blow the 20W lamps.... Ensure however that the lamps you will be using are rated for 220 volt operation... I am guessing you are...
I'd locate an antique dealer; he/she can probably tell you what they're worth (if anything). I'd definitely talk with more than one dealer, so that you get an idea of the market for your items.
Hi, I am not sure what floor lamps and depression have to do with each other, but crystal salt lamps could be described as therapeutic. The idea is that when they are lit - the more expensive ones are wired with a light bulb, the cheaper ones are hol...