I didn't find any dimensions. ut if you assume on revision 2 that the sheet it is cut from is a 4*8 sheet of ply. you could simply pull the image into a paint program and use the rulers to closely approximate the dimensions. remember that that if 4 feet on your screen is equal to 2 inches then divide 2 by 48 to get your scale in the case of 2 to 48 that is a 1:24 scale I.e. 1 inch equals 24 inches. Hope that this backdoor method helps you out.
