I think I've had this problem with Farne links before - the session seems to time out and the link doesn't work from outside. (Though when you get there you'll find the address is as Reinhard has it).

You can use the link to the search page: Farne Archive and then search for Gannin to be a keelman. Click on the (only) result title for the details. If you want to be able to read the words, use the Click to show larger image(s) on that page.

Mick