The Collings 0 is Collings smallest guitar, save the Baby model, and is set up with the same shorter scale found on the Collings 12-fret 00. When Collings introduced the 12 guitar in early 2013 They chose the 0 model to base that offering around. This design features a slotted headstock, 1 7/8" nut width, and easy to play 24 7/8" scale length. This custom 01 12 fret 12 string features the standard 01 appointments, with the addition of a Maple back, sides and neck, along with a Sitka Spruce Top. More information on this guitar here:
Collings 01 12 String