Hmm. Wish I'd seen this earlier. Here goes nothing: 6789 6798 6879 6879 6978 9786 8796 8976 8967 8769 8796 8967 8976 9876 9867 9768 9786 7896 7869 7968
Dang, just got back from work. What is weird is that I agree with rlm and Petro, but Petro guessed 6897 in post 14 on page one.
Congrats, petro89! Only took 14 guesses. That was shorter than anticipated; oh well! The number is 6897. I can provide picture of the page with date stamp but it will have to wait until I get home tonight to get it off my phone. Petro, just PM me your address. I'll be going to the show Sunday and will ship out the prize on Tuesday. Congrats and nice puzzle work!
Logged on today at lunch, scrolled down the first page, worked out the answer, then I saw that everybody else had already gotten there. Bummer. Congrats to Petro89, Thanks to Dimeguy and have a great time at the show.