Posted By:
Elliot (pro9)is that the Jumbos were created when the sheets that were being printed were larger than normal. This would result in either the top or the bottom row (or the left or right side column) being larger than normal. My experience is that a larger than normal percentage of jumbos are off-centre (do you agree???) due to the larger sheet size. Any other theories as to the existence of jumbos?