This exhibit has split pin base pins and is fully silvered inside the glass. No identification of any type can be seen suggesting it once had a paper label around the base. It is possibly of Dutch origin.
The base shell and base pins.The balloon envelope is 40 mm in diameter, and excluding the B4 base pins is 79 mm tall.Reference: Observation. |
Pin Connections
| 1 | 2 | 3 | 4 |  a | g1 | f | f |
|
|
Updated August 09, 2023.
|
|
