Found on eBay: MSFC "Space Taxi" concept

Artist's impression of Marshall Space Flight Center (MSFC) "Space Taxi" concept found on eBay.

Source:
http://www.ebay.com/itm/1966-Vintage-NASA-8x10-Photo-Space-Taxi-Artists-concept-drawing-/110787704453?pt=LH_DefaultDomain_0&hash=item19cb763685