Originally Posted by Pops
There is a name on the ticket but I won't reveal that here.
Any ideas on how to trace the owner without making any international phone calls
If there's no joy in taking the book back to where you got it - how about scanning the ticket, printing a few copies and maybe asking local shops etc to put a notice in the window.
If it's a library book it's probably been circulated around several libraries .. so another option could be for you to contact a few regional papers and suggest they might be interested in writing a small article about it and include a copy of the picture.
Here's a link
listing the UK regionals that are online so you can start with your locals and extend outwards if necessary.