This Autographed Dated March 3, 1915 & Framed Typed Letter has been Personally Signed by Alexander Graham Bell. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website. This item has been professionally framed to overall dimensions of approximately 31 x 34.5 inches.