I have one that came with my old 'C'. It's just the right height for the upstairs bedroom in a C or a B. It looks like one from CW. It collapses by unhooking a latch on one step, sort of like the latch on a card table. The 2 sides then sort of nest into each other. It makes a package 71' long and 2" square when folded. Mine resides in the side of the bed by the left upper window. When unfolded it's 60" x 12" and has hooks @ the top to hook over the bed rail. works easily and stores nicely. I can't see any brand mark.
john (I am Canadian)