Disk Long Count
Six interlocking disks show off the cyclical nature of the long count. 1. Pictun (20 baktuns) 2. Baktun (20 katuns) 3. Katun (20 tuns) 4. Tun (18 uinals) 5. Uinal (20 kins) 6. Kin (a day) Note: compare this to the "2012-12-21" version, with 13 baktuns in the last cycle.
