Collectors of electrical/electronic memorabilia, old books and ephemora shop on ebay. I'd seach for anything related and then contact bidders who collect to see if they have anything they might want to share. The more unusual the collection, the more excited people are to share. You might also look at the boards and see if there's one related and post there. If you're new to ebay, ask around, you're sure to know someone familiar with the site.
