Box of A5 envelopes mailers (almost 250 of them)

The box isn’t completely full, I estimate 230-240 out of the original 250 remain. Largest size of envelope that you can post as standard lettermail (a single “P” stamp within Canada). Big enough to perfectly hold a normal sheet of paper folded in half (Burger-wise). It is the licking type of envelope. It’s more fun than the self adhesive type.