I found a neat looking pair of small lattice-grilled speakers at a yard sale for $20. Was that a good deal? What might they be worth? They look pretty good and sound great. I have been interested in vintage audio for a few years now, but have no knowledge of Altec, Lansing, or JBL. Any help from forum members would be greatly appreciated. The back label reads "James B. Lansing L75 Minuet".