No. J O 6205.
The “Universal” Map Measurer, for accurately measuring any distance, whether straight, curved or dented, such as the length of roads, rivers, the sinuosities of coasts, etc., with ring or handle, 3/9
No. J O 6202.
Rotameter, reading to 12 in. and 25 ft., 4/3
No. J O 6206.
Rotameter, Nickel Case, 3/6
Do.Silver 5/3
Engraved do. 7/0
No. J O 6207.