Three Soviet commemorative covers signed by cosmonauts, including: Valentina Tereshkova and Andrian Nikolayev; Valentina Tereshkova; and Gherman Titov. In overall fine condition. Accompanied by a full letter of authenticity from Zarelli Space Authentication for the twice-signed cover.
This item is Pre-Certified by STEVE ZARELLI
Buy a third-party letter of authenticity for (inquire for price)
*This item has been pre-certified by a trusted third-party authentication service, and by placing a bid on this item, you agree to accept the opinion of this authentication service. If you wish to have an opinion rendered by a different authenticator of your choosing, you must do so prior to your placing of any bid. RR Auction is not responsible for differing opinions submitted 30 days after the date of the sale.