Last call on the Langworth book. These have been out of print and virtually unavailable for years, priced typically in poor condition from $45 to $150. This one is signed by the author.
I personally have enjoyed reading Langworth over the years from his books to his Collectible Automobile articles. I first read his work in 1979 in Car Collector magazine, a Peterson publication - maybe called Car Classics back then, can't remember.