Thanks, Mike.

I'll be seeing the owner in a couple of weeks and ask him if he remembers at what depth the whistle was found. His family have been excavating and rebuilding for 51 years, so I don't expect much to come of this.

My main hope is that someone with musical knowledge can

a) give him arguments to get it professionally carbon-dated; and

b) help me to get it into playable condition by non-invasive restoration.