You mean one of these ?
http://www.intershoot.co.uk/acatalog/Sundries.html#a210
I have seen such a device used for confirming scores on 22 match cards. I believe that they can be obtained from someone in Ireland for about £15. Can anyone put me onto the source?
Thanks
Bob G
You mean one of these ?
http://www.intershoot.co.uk/acatalog/Sundries.html#a210