Interferometry Scope & Green Bank Telescope, Green Bank Observatory Homesell-media-storeBack to Gallery Print size (?) Select a size Pt/Pd 5x7 Print (10 x 8 in) : $250.00Framed Pt/PD 5x7 Print (14 x 11 in) : $350.00 Select a size Total: $0 Add to cart Save to LightboxThis item was saved to your lightbox.