This Norwegian mathematician and physicist built his own spy camera when he was a 19 year old student to take unsuspecting pics In the 1890s....
https://thornews.com/2014/02/24/norways-first-paparazzi-carl-m-stormer-1874-1957/
https://www.boredpanda.com/spy-camera-secret-street-photography-carl-stormer-norway/
https://www.hankermag.com/secret-street-photography-with-spy-camera-carl-stomer/
He was also a reknown auroral photographer, but there very few of those photos online. Here,s an article:
https://www.altamuseum.no/en/exhibi...irkeland-jubileet-manedens-gjenstand-november
http://www.libraryoflight.org.uk/post/97212952439/image-above-carl-störmer-with-an-auroral-camera
All Very cool
Enjoy
Regards, Art
https://thornews.com/2014/02/24/norways-first-paparazzi-carl-m-stormer-1874-1957/
https://www.boredpanda.com/spy-camera-secret-street-photography-carl-stormer-norway/
https://www.hankermag.com/secret-street-photography-with-spy-camera-carl-stomer/
He was also a reknown auroral photographer, but there very few of those photos online. Here,s an article:
https://www.altamuseum.no/en/exhibi...irkeland-jubileet-manedens-gjenstand-november
http://www.libraryoflight.org.uk/post/97212952439/image-above-carl-störmer-with-an-auroral-camera
All Very cool
Enjoy
Regards, Art