This L-00 has the LR Baggs HiFi Duet High-fidelity Pickup and Microphone Mixing System installed. Here is a link to the description:

From Gibson Website:

The L-00 is one of Gibson’s most iconic models. Developed in the early 30s, the L-00 was an industry standard for many years and is still popular with guitarists today. Delivering unparalleled projection not found in comparable small-bodied guitars and a tonality that is best described in Gibson’s 1934 catalog as a sound of “perfect balance,” The 1933 L-00 achieves all the advantages of an acoustic that is comfortable to play in your home while still producing Gibson’s characteristic rich, full sound. The 1933 L-00 features Light Aging by the skilled artisans of the Murphy Lab. The Murphy Lab Light Aged finish treatment, paired with lightly aged hardware, simulates decades of light play wear, giving it the unique character, vibe, and feel of an original example from the Gibson Golden Era.