You are bidding on a: 

Unique, cool, vintage set of unique cards that are blank on the insides and feature a ink drawing of an old airplane, a Travel Air Maiden Wichita 1927 and signed on the front by the artist Bob O'Hara. In the lower right corner reads. Pen & Ink Artistry by Bob O-Hara, El Dorado County, California. Neat lot of 6 of the same ones, all signed by Bob and each comes with blank envelope. Unused on the inside. Really cool and in mint condition in the original cellophane wrapping. Circa 1970s era. Each is about 4 1/2 inches tall and 5 1/2 inches wide. 

Shipping and handling with delivery confirmation is only $3.50 anywhere in the US, which is less than it will cost me.  

Look at the picture.