Geiger counter tubes : illustrated price list, December 1957 / 20th Century Electronics.
- 20th Century Electronics (Firm)
- Date:
- 1957
Licence: In copyright
Credit: Geiger counter tubes : illustrated price list, December 1957 / 20th Century Electronics. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/b15543900_EPH_27_3_0001.jp2/full/800%2C/0/default.jpg)