It's really great to receive so many email's about the 1925 Ted Pattern. To everyone, THANK YOU, you are very welcome. It's amazing it's so popular in Russia. It would be great to see your creations. Most of my mail repeats itself .. How do cotter pins work ? If you haven't a clue, I will try to explain. (oh muddy waters....) Above you will see various sizes of cotter pins, and washers and disks. Looking at some other sites and books I can understand how sometimes it seems complicated....IT…