Space & Aviation
Rare Sputnik-1 model auctions for $847,000
The Sputnik-1 model is one of only three still in private hands
Bonhams’ Air and Space sale features huge selection
Items from Alexander Graham Bell and the Wright Flyer will be sold
Venera 4 spacecraft model has $20,000 estimate at Regency Superior
A model of the pioneering Venera 4 Soviet spacecraft will auction in October