![Space Astronomer Lubos Kohoutek from Hamburg Observatory Comet NASA Photo 1973 by NASA: Photograph | Bits of Our Past Ltd Space Astronomer Lubos Kohoutek from Hamburg Observatory Comet NASA Photo 1973 by NASA: Photograph | Bits of Our Past Ltd](https://pictures.abebooks.com/inventory/22870060925.jpg)
Space Astronomer Lubos Kohoutek from Hamburg Observatory Comet NASA Photo 1973 by NASA: Photograph | Bits of Our Past Ltd
![Lubos Kohoutek - Commemorative Sheet With First Day Cancellation Circa 1967 co-signed by: James A. Van Allen, Clyde William Tombaugh | HistoryForSale Item 217519 Lubos Kohoutek - Commemorative Sheet With First Day Cancellation Circa 1967 co-signed by: James A. Van Allen, Clyde William Tombaugh | HistoryForSale Item 217519](https://www.historyforsale.com/productimages/jpeg/217519.jpg)
Lubos Kohoutek - Commemorative Sheet With First Day Cancellation Circa 1967 co-signed by: James A. Van Allen, Clyde William Tombaugh | HistoryForSale Item 217519
![Clyde William Tombaugh - First Day Cover Signed co-signed by: Lubos Kohoutek | HistoryForSale Item 43610 Clyde William Tombaugh - First Day Cover Signed co-signed by: Lubos Kohoutek | HistoryForSale Item 43610](https://www.historyforsale.com/productimages/jpeg/43610.jpg)
Clyde William Tombaugh - First Day Cover Signed co-signed by: Lubos Kohoutek | HistoryForSale Item 43610
![Lubos Kohoutek - Commemorative Sheet With First Day Cancellation Circa 1967 co-signed by: James A. Van Allen, Clyde William Tombaugh | HistoryForSale Item 217519 Lubos Kohoutek - Commemorative Sheet With First Day Cancellation Circa 1967 co-signed by: James A. Van Allen, Clyde William Tombaugh | HistoryForSale Item 217519](https://www.historyforsale.com/productimages/thumbnails/47249.jpg)
Lubos Kohoutek - Commemorative Sheet With First Day Cancellation Circa 1967 co-signed by: James A. Van Allen, Clyde William Tombaugh | HistoryForSale Item 217519
![Czech Astronomer Czech Astronomer](https://m.media-amazon.com/images/I/31M3bUwOAoL._AC_SY780_.jpg)