Here is a post by one of G&L historians, HLG:
CL Initials Clarification. He states that Leo Fender
did not sign any G&L neck pockets. Of course, these signatures are in the trem cavity and trem cover.
Looking at Jos' post, in my opinion, I don't think that Leo Fender signed either of these.
The 'L' , 'e' and 'o' look different from known Leo Fender signatures.
As I mentioned above, there was another G&L employee named Leo Crabtree who worked in
the factory, so it's possible that it is his signature. But without seeing his written signature,
that would just be pure speculation.
Perhaps Larry (HLG) will be able to add some comments as to whether or not this might be
Leo Fender's signature.
Please do add this F-100 to our
G&L Registry.
BTW, that is a great looking F-100. It look's like a Tobacco Sunburst finish. Where did you
find it?