Muller (Dieter) Classical Guitars for sale in the USA

At least 2 Reverb results for Muller classical guitars
Dieter Müller -  2018 for sale

Dieter Müller - 2018

Dieter Müller - 2018 for sale

Dieter Müller - 2018

At least 1 eBay results for Muller classical guitars
Antique seven-string guitar

Antique seven-string guitar "Muller" (Russia)