Specimen of isinglass, no provenance, 1850-1930 Specimen of isinglass, no provenance, 1850-1930 1850-1930
Dried unopened lump-isinglass, no provenance details, 1861 to 1930 Dried unopened lump-isinglass 1861-1930
Flaked fragments of isinglass, no provenance details, 1861 to 1930 Flaked fragments of isinglass 1861-1930
Insoluble pipe isinglass, inform of whale air-bladder, from Brazil, 1861 to 1930 Insoluble pipe isinglass 1861-1930
4 semi-transparent dried leaves of soluble isinglass, from Astrakhan, Russian, 1861 to 1930 4 semi-transparent dried leaves of soluble isinglass 1861-1930
Specimen of isinglass, no provenance, 1850-1930 Specimen of isinglass, no provenance, 1850-1930 1850-1930
Dried book-isinglass, Russian (?), 1851 to 1930 Dried book-isinglass, Russian (?), 1851 to 1930 1851-1930