The cab was made of 13 ply (which is 18mm ~.7 inch) baltic birch so it appear to be a new construction. They didn't use that type of plywood on the original flat back, it had less plys and was ¾". No mention of what speakers are in the cab. This is important, the best option would be the speakers used in the Heritage 810E. Fliptops.net makes these cabs, it could be from there.
