Calvin Coolidge Typed Letter Signed

TLS, one page, 8.5 x 11, personal letterhead, October 25, 1921. Letter to Frederick Harris, in full: "It is with regret that I learn of your inability to accept membership on the National Board of Directors of Clarke School for the Deaf. I trust this declination will not prevent your active support in a local way when a state-wide campaign in Massachusetts is undertaken." In fine condition, with one tiny stain. Accompanied by the original mailing envelope.