Here are two examples of actors who misplaced my request for an autographed photo, but eventually they came through.
Alan Hewitt was a well-known supporting player from the 1950s through the 1980s. Richard Deacon was a highly recognizable character actor during the same period.
In September of 1981, I wrote to Mr. Hewitt, requesting a photo. Apparently, he misplaced my letter, and found it while cleaning house. He apologized with this handwritten note on the bottom of my letter - "Found this tonight during a long overdue 'house cleaning'. So sorry for the delay", and enclosed this photo. But waiting two months for the photo wasn't so long, when compared with Richard Deacon.
Mr. Deacon's humorous inscription on the photo he sent me, showed his slight embarrassment in the delay - "See you should always have faith! Seven months later."
Collecting autographed photos by mail is fun, but sometimes lots of patience is needed.