A double whammy for you John:
This 1860 photo shows an Army photographer (probably Royal Engineers) using a whole plate studio camera to photograph a document at the @OrdnanceSurvey office in Southampton. pic.twitter.com/Gy2a0FL2JU— Historic Southampton (@HistoricalSoton) November 27, 2017
That's not a camera...this is a CAMERA....
The OS London Road...believe it or not, before my time.