22

Trachyt Steinbruch am Stenselberge im Siebengebirge/ Trachite Quarry at Stenselberg in the Siebengebirge. c.1828. 62cm x 49cm (24.5"x19.5") Uncoloured lithograph on flat cartridge paper with minor tears and loss on all margins repaired neatly, minor water marks from spillage, a crease in left margin and slight dustiness. A view of a quarry face exhibiting cylindrical jointing and quarrymen entering an apparent adit.  In fair to good condition.

£30

23

Basaltbildung/Basalt Formation. c.1828. 62cm x 49cm (24.5"x19.5") Uncoloured lithograph on flat cartridge paper with minor tears and small loss on top margin, minor water marks from spillage and slight dustiness. Five figures with letters referred to in missing text. 1,2. Sections through Druidensteins at Heckersdorf; Quarry views  at 3. the Blaue Kuppe at Eschwege and 4. The Pflafterkaute at Marksuhl; and 5. Der Berg de la Coupe, a view showing a complete volcano with columnar basalt exposed in a river bank at its base. In good condition.

£40

24

Die Kasegrotte bei Berlrich/the Cheesecave at Berlrich. c.1828. 62cm x 49cm (24.5"x19.5")  Uncoloured lithograph on flat cartridge paper with minor tears and small loss on left margin, very slight foxing and slight dustiness. A view of a ravine with columnar basalts forming the valley side, rapids and a high foot bridge with three well-dressed figures and a dog in the foreground admiring the view. In fair to good condition

£30

25

Basaltbildung auf der Landskron im Ahrthale/Basalt Formation in the Ahr Valley. c.1828. 62cm x 49cm (24.5"x19.5") Uncoloured lithograph on flat cartridge paper with minor tears and small loss on left margin. Two views, one showing a cliff of columnar basalt with a small chapel and view of a shallow cave or quarried niche which may be to the left of the chapel in the top view. In good condition.

£35