TLS, one page, 8 x 10.5, Beinn Bhreagh, Nova Scotia letterhead, October 17, 1906. Bell writes to Mrs. M. H. Mackenzie in Baddeck, Nova Scotia. In full: “I am in receipt of your communication of the 2nd instant, requesting my autograph, which I attach to this note below.” In very good condition, intersecting mailing folds, small marginal holes and tears, light show-through from mounting traces to reverse, and mild wrinkling, and subtle feathering to signature. The signature is clear, dark, and otherwise unaffected. RRAuction COA.