Kammer on Attersee
In the period tourist guide "A Day in Salzburg" I find reference to the "renowned photographic establishment" of Würthle & Spinnhirn. ("Ein Tag in Salzburg - Kurzer Wegweizer" published by Heinrich Dieter, Salzburg 1883.) Their work seems to focus on the mountainous environs of Salzburg as much as the city itself. Parts of this scenic region were more recently used as setting for the film "The Sound of Music".