Thankyou.
I’d gone straight to the ‘Lens’ web-site, which is intended for ‘phone use. I’d not known Google more generally offers the application more directly.
Anyway I’ve sent the images to a friend who can use ‘Lens’ or similar.
++++
Incidentally, does anyone remember that very strange circular slide-rule(?) with “random” fractions and 16-times table, that totally foxed us all a few years ago? I wonder if these identifying tools might help solve that, if anyone still has the photo. It appeared on here before such search-tools existed, or were readily available.