All reasonable questions...
After some investigation and confirmation with a tape measure. I am confidant it started life as a Placebo Surfskate 4'10" X 19.25" wide and 2.2" thick. I can't find volume, but simple online calculators put it at 22-24L.
The front and rear deck pads both have provisions for straps, the older style twin machine screws. I have jumped it with straps.
There is a chain somewhere here detailing a repair I did due to heel dents/delam under the front deck (likely from kiting). I replaced the core, added divinycell and reinforced with Carbon Fiber. Will never break there again...
http://www.surfscience.com/surfboards/placebo-surfskate