https://www.cointalk.com/threads/1963-k-series-note.364420/ which discusses interpreted "meanings" of the numbers and letters on a note, I had a thread idea. I would like to see notes you have found that have special meaning *to you* or otherwise interesting coincidences, even if they are not necessarily "fancy serial numbers". The note I have is my "Engineer's Note" or "Kilobyte Note". I can glean all sorts of made up meaning from it which only adds value to me, personally. Serial Number: 1024 is the number of bytes in a kilobyte, which is neat to me. District Letter: K of course is for Kilobyte! District Numbers: 11. Take 11 bits. 00000000000. Flip the 11th position. 10000000000. In binary, that translates to the decimal number 1024! 1024 is a perfect power of two. There are only so many serial numbers with this property. 1, 2, 4, 8, 16, 32, 64, 128, 512, 1024, etc. Let's see some notes in which you have found special meaning!