Bisolvon : Boehringer Ingelheim. No.1, Carl Frei 112 keyless concert organ.
- Date:
- [approximately 1970]
Licence: In copyright
Credit: Bisolvon : Boehringer Ingelheim. No.1, Carl Frei 112 keyless concert organ. Source: Wellcome Collection.
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Licence: In copyright
Credit: Bisolvon : Boehringer Ingelheim. No.1, Carl Frei 112 keyless concert organ. Source: Wellcome Collection.
