This Autographed 5.5x8.5 Letter with the inscription of "Glad to oblige, hope I did em right " has been Personally Signed by Norman Rockwell. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website. This is a letter sent by a fan to Norman Rockwell dated 5/19/1975. In the bottom left of the letter Normal Rockwell wrote back in blue pen with an inscription and his initials.