133: DIETER RAMS AND DIETRICH LUBS, ET 22 Control calculator < Dieter Rams: The JF Chen Collection, 12 July 2018 < Auctions | Wright: Auctions of Art and Design
Design icon: Braun ET-66 calculator - the design that influenced Apple | Design talk with Cheedi - YouTube
Brown Braun Calculator Reprint Model Bne001Bk | eBay
Counter Culture: the iconic design of the Braun ET 66 | PORT Magazine
The math checks out: Braun's iconic calculator is back – Knapsack
ArtStation - Braun Calculator
IPhone's Design Tribute to a 1977 Braun Calculator | WIRED
Braun BNE001BK (Reissue of the Braun ET66 Calculator), Black - Stevens Books