The L-3 was part of the L Series of guitars made by Gibson in the early 1900s. This is an early example of the L-3 with a round soundhole, after 1928 this model moved to an oval soundhole.
By using the serial number the build year is 1927.
The guitar is fitted with a Shadow Nano Mag pickup and is missing the pickguard.
This L-3 just oozes atmosphere and it sounds amazing, a real piece of history!