peter:
I checked the web-site you suggested: I wouldn't believe a word that guy says!

If you PM me a postal address, I'll send a colour photo-copy of the 20/.577 article if you can't think of an easier solution. It's no trouble.

I'm rather disappointed your father-in-law didn't go for the trip 'down-under'. Perhaps I should bring it over...
Could you trick him into thinking it's yours?