Up for sale is a trade catalog/brochure put out by Katolight featuring their Air Cooled and Water Cooled Power Plants circ 1955.  This is a two-sided single sheet.  This item was removed from a large reference catalog.  Very good condition, staple holes.  I charge a shipping fee so that I can combine shipping for those that want to take advantage of purchasing more than one item.
I pack for safe shipment.