Thread:El1013 aj/@comment-33594242-20181104015318

Credit to 1y2e3r4u for pointing this out: It's my 13th giveaway, and in Australia, they write the dates like this: 3-17/11 and if you add the digits, 3+1+7+1+1= 13!

https://aj-item-worth.wikia.com/wiki/Thread:446732#31 