Gibson was a pioneer in the development of small body guitars at the beginning of the 1900s with its L-Series small body acoustic guitars. The Gibson L-00 was developed in the early 1930s and has been an industry...

These are the tuners used on the 1936 (and some 1935) Gibson L-00's...I've never seen a set for sale. The have the "open book" shape at the top and bottom, the word "top" inscribed above the top gear, and are solid...