I need to add a correction to my posting about the AMPICO Play-Reroll
pneumatic span.

The top and bottom brackets and the wire staples, top and bottom, do
space the outer boards apart, but their spacing to the outer edges is
only about three inches.  The difference between this width and the
actual 4 5/8" span of the cloth is so that the center board has enough
extra cloth to allow it to move side to side between the two outer
boards.

Pat DeWitt