Not sure. I got mine off eBay as memento, having read it back in school days many years ago. Very much identical to this lot: https://www.ebay.com/itm/1955-Tra

Not sure. I got mine off eBay as memento, having read it back in school days many years ago. Very much identical to this lot: https://www.ebay.com/itm/1955-Traveling-in-Space-M-Vasilev-Russian-Soviet-Illustrated-Vintage-Book-Rare/223782937120 https://www.ebay.com/itm/1955-Traveling-in-Space-M-Vasilev-R... There's also an expanded post-Sputnik edition of it I think.