A bibliographic question: Billboard published directories which include record company listings and addresses under a number of names over the years. I have one for 1946-7, called "Billboard Encyclopedia of Music." It claims to be the 8th annual issue. Billboard Encyclopedia of Music. Vol. 1 1939-40 Vol. 2 1940-1 Vol. 3 1941-2 Vol. 4 1942-3 Vol. 5 1943-4 Vol. 6 1944-5 Vol. 7 1945-6 Vol. 8 1946-7 Billboard International Buyer's Guides. I've seen or have these from 1962 to the present. What was published between 1947 and 1962 that contained this information? The 1946/7 edition is presently on Alibris and was just on eBay. Are there extant copies of the earlier ones? I'd be interested in buying or having copies made of the parts I need. Who has those in the 1947-62 gap? They may have used another title during this interregnum. Steve Smolian