A most interesting Monday morning mystery. The tyres are known and the photo has been used by Michelin for publicity but the car is still unidentified. Text on backside of picture: 'Schwere Fahrt am 28 Juli 1900. Gruz (?) - Rusogund(?) - Schvörle (?) 4542 feet high. "Well that's quite an accomplishment. Especially taking into account the far from standard machinery for that time. Please check the watercooled opposing twin in this next photo showing the front of the carriage." Who can help with the location and of course the car!
(Pictures sent by a friend from France)