No. J O 6188.
Abney’s Levels, 5 inches long, large arc pattern, with draw telescope and improved central fixing clamp to Vernier, complete in leather case, 29/0
Ditto, with compass attached and circular revolving base, having detachable socket by which means horizontal angles can be measured, complete in case, 45/0
No. J O 6189.
Pocket Reflecting Level, in bronze, metal case, 5 inches long, in leather case, complete, 11/6
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SURVEYING INSTRUMENTS, RAIN GAUGES, Etc.
No. J O 6190.