Nope, they are both from one of Grundig's many competitors at the time - Nordmende (both Othello models)- that are quite uncommon today. Grundig, Telefunken & Sata tend to dominate.
The upper one is an export model (stereo) for North America from 1960 that I picked up semi-locally (Victoria craigslist) for $50. A steal considering it is fully operational.
The lower one is a European model from 1955 & is a mono version as stereo was in its infancy at that time. It has been fully restored & is a jewel with its beautiful woodwork. Considering the time & work involved, the $200 (ebay from Quebec) that I paid was another bargain.
With their large speaker complement & tube amps, both sound full & wonderful.
Very nice gear that you have. What is funny, looking at your chess set, we had a carved alabaster set where my MC-100B now sits. I think that my wife prefers the chess set, ha!
BTW, I mustered up the courage to check the KT88 bias voltages yesterday & they are bang on & balanced - no tweaking required...