American physicist (1910-1989) who won the 1956 Nobel Prize in Physics for his development of the transistor. FDC with a cachet honoring 'Progress in Electronics,' with an image of Walter Brattain, William Shockley, and John Bardeen, signed in black ink, "W=Shockley," who adds a sketch of a transistor. In very fine condition.
*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.
Agree to RR Auction Bidding Terms
Register or Login
Create User Account
Features include want list creation, accessing past auction archives, and receiving auction alerts.