Method of making a continuous web form and product, particularly one suitable for airline ticketing

A method of making a form suitable for airline ticketing and the like comprising advancing a plurality of superposed webs in a predetermined path, said ply plurality ultimately becoming at least a part of the interior plies of said form, sequentially severing said ply plurality along equally longitudinally spaced apart transverse lines to provide a sequence of packets, introducing a bottom ply into said path at a speed greater than the speed of advance of said ply plurality and uniting said ply plurality to said bottom ply to provide a continuous form wherein packets of said plurality of plies are positioned in longitudinally spaced apart relation on said bottom ply, and thereafter zig-zag folding said bottom ply between at least some of the adjacent packets.