|
|
Lyzer Spectrometer : 6" OR 7" circle read by two opposite verniers to one minute of an arc. Complete in wooden box. |
|
 |
|
|
|
Spherometer : Gun metal C.P. scale and disc fitted with nicely threaded oxidised or C.P. rod and legs, large size superior.
1/100, 1/200 |
|
 |
|
|
|
| Tapping Key : Single contact OR Double contact with brass C.P. points. |
|
 |
|
|
|
Tuning Fork : Set of 8 ordinary with velvet box OR Welch Type Heavy |
|
 |
|
|
|
Vernier Calliper : With wheel (Chrome Polished) 5" (12.5cm). |
|
 |
|
