Treasure Hunt - Seven Places to find Boston's Coolest Collectibles -  "For Jim Lapides, collecting vintage posters has 'been a labor of love' ever since he became partial to Italian design while studying in Florence. In his quest for graphic masterpieces, Lapides has traveled to estate sales, attics and flea markets in remote corners of the world. 'I'm interested in modern art in all its guises - good design from all eras,' he says."