This exceptional late 19th-century mahogany-cased barograph and barometer by Negretti & Zambra exemplifies precision craftsmanship and scientific instrumentation of the era.

🔹 Era: Victorian
🔹 Decade: Circa 1890
🔹 Condition: Excellent condition with well-preserved mahogany casing, clear dials, and smooth mechanical operation.

Features:
✔ Five-glazed removable lid – Combines elegance with practicality.
✔ Eight-day mechanical movement – Ensures accurate and continuous pressure recording.
✔ Seven-day chart drum – Provides a clear record of atmospheric pressure changes.
✔ Eleven stacked vacuum capsules – Enhances sensitivity and precision.
✔ Gate suspension mechanism – Ensures smooth operation.
✔ Half-round barometer dial – A unique feature, adding to its rarity.
✔ Recessed glass ink bottle – An elegant and functional touch.

📏 Dimensions:
✔ Height: 7.5 inches
✔ Width: 14.5 inches
✔ Depth: 7 inches