This black cardboard container has 8 tubes but could possibly hold 10 or 12 ? Container is 30mm x 185mm.
The brass tubes are 6mm diameter and 152mm long without the wire. The base is open and tapers to about 5mm.
I wish to ask if these are British, which devices they were used in and approx. date. All answers are welcome.
The brass tubes are 6mm diameter and 152mm long without the wire. The base is open and tapers to about 5mm.
I wish to ask if these are British, which devices they were used in and approx. date. All answers are welcome.