On an aside, here is another of K. Bileski's projects:
I have no memory of what I sent to make up the $6 in stamps, but off it went, and soon two sets came in the mail.
Here is one page from each of the sets.
I still don't know what to do with them, but every now and then I'll come on them again. For a few moments, start to make plans as to start matching stamps to maps and forming a "one of" collection. But then, back they go into the wrapper and back in the box.
The cover letter.