I wrote a Gracie Allen joke

[scottp]

Well I THINK I did... it's POSSIBLE I heard it-- you see, I keep playing an MP3 with a bunch of Burns and Allen shows, and I drift off during one episode and wake up during the next, and so on (for hours sometimes.)

(It needs a set-up that Gracie just happened to run into her cousin Albert and is telling George about it.)
GRACIE: You know, I hadn't seen my cousin Albert since he was a little boy, but I'd recognize him anywhere.
GEORGE: Really.
GRACIE: Oh sure... he has a very distinctive postmark.
GEORGE: Postmark? Don't you mean birthmark?
GRACIE: No, postmark. His mother was a mail order bride.

Feel free to say whether you think this joke is Funny and Original, Funny But Stolen, Not Funny AND Stolen, or Original But Not Funny.