One of the pioneering broth-ers of aviation writes to the son of the other. Typewritten two-page note on Orville's personal letterhead discusses the assembly of a printing press. We can see the mechanical mind at work. Closes, "Affectionately, Uncle Orv." Signature is in perfect dark black ink. Includes original mailing envelope, noting recipient as "Wilbur Wright, Esq." NRMT.