A rubber-band driven type, 80s? The counter doesn't seem to work, but the reset/trip knob does.
3 pics here https://www.flickr.com/photos/7693620@N ... otostream/
Postage of £3 should cover it.
3 pics here https://www.flickr.com/photos/7693620@N ... otostream/
Postage of £3 should cover it.
