For the sticky note on the back...
I zoomed in really close, took a screenshot of it and flipped it horizontally as if looking at it from the front and it was a string of numbers... it was hard to see if the first is a single digit or a double digit but following the pattern, I believe its a double digit and it does kind of look like an 11 so I'll say that but I'm kind of iffy... the numbers I saw are 11 23 30 31 37 41 ╮( ̄▽ ̄)╭
This is at least what I think. I'd like to see what anyone else thinks if you guys try seeing what it looks like too