It is a sample/preproduction guitar. ESP makes the samples to test out various colors, finishes and to show to dealers prior to the actual model being built. They take them to shows like NAMM and start taking preorders for the new years model. Some Samples are never make it into production models.

This looks like what the first AC-10TSB turned into. The finish on this is very different than the production model. 

Specificatons taken from the 2011 ESP site. 

*As this is a Sample some specs may not be the same as the production model but 99% of the time they are the same. 

• Set-Neck Construction
• 25.5" Scale
• Mahogany Back & Sides
• Spruce Top
• Mahogany Neck
• Rosewood Fingerboard
• 42mm Standard Nut
• Thin U Neck Contour
• 20 XJ Frets
• Chrome Hardware
• ESP Tuners
• Rosewood Bridge
• ESP Piezo Pickup
• ESP 2-Band Preamp w/ Onboard Tuner
• Finish: TSB (Tobacco Sunburst)