This is a NOS original sales brochure from S.E. Loper and Son for their Loper Air Tower or X-Air Post.  It measures about 8 1/2 x 11 inches and incudes the original price sheet.  It shows all of their products in great detail and is a great resource to identify some of these early items!  It is dated 1928 and would be a great addition to your old service station or implement dealer advertising collection or automobilia display.  It has some very minor handling wear.  The pictures tell the story.  You'll like it.  I can be reached at 262 573 193 1 if you'd like to talk about it.  Good Luck.