No. J O 6169.
Travelling Aneroid in Silver Mounted Case, 40/0
[100]
COMPASSES, Etc.
No. J O 6170.
Pocket Transparent Pebble Compass.
This consists of two Plano-Convex Lenses, with a very sensitive Bar Needle accurately balanced. Being optically worked it answers as a magnifier and burning-glass also.
| 1½ in., | Silver | mounted | ...... | 30/0 |
| 1¼ in., | ,, | ,, | ...... | 22/0 |
| 1⅛ in., | ,, | ,, | ...... | 17/6 |
No. J O 6171.
Brass Pocket Compass, Silvered Dial.
1 in., 1/2 1¼ in., 1/8
1½ in., 2/3 2 in., 3/0
