On offer, we have a hand written letter by Upton Sinclair. This is to "My Dear McNally", it's a thank you for "yrs of 21" with a promise to write the preface. It is signed "The Lord has sent you! Upton Sinclair".  This letter, dated Apr 22 65 is written on a promotional brochure for "The Sinclair Exhibit" at The Lilly Library of Indiana University 20 September 1963. If Mr. Sinclair's desk was like mine, he just grabbed the first available paper for his letter 19 months after the exhibit. This program is on manila paper and measures 8 1/2" X 5 1/2". 
   I am not an expert, but believe this is in excellent condition considering the age. The program has been folded, is a bit wrinkled and has some light spots on the cover. The letter on the back is clean, clear and easy to read. Please view all photos for more description. 
  These are from my friend who collects everything. We had this authenticated by our local rare book dealer, and it is absolutely an authentic autograph.
   I will be happy to answer any questions and, of course, combine your shipping.