Post Office Indicators
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LicensePost Office Indicators Gas Leak no:1 introduced 1905.
Science Museum Group
© The Board of Trustees of the Science Museum
Post Office Indicators Gas Leak no:1 introduced 1905.
Details
- Category:
- Gas Industry
- Object Number:
- 1977-521
- type:
- gas leak detector
- credit:
- PO Telecommunications Museum
