Paulus has an entry on TNA http://megalithix.wordpress.com/2010/10/15/seaty-hill/#comment-337 mentioning the Malham Iron Age Pipe
I've just put more information about this on my Blog http://teddytourteas.blogspot.co.uk/2012/04/malham-iron-age-pipe.html
and thought I'd share on here aswell.
The Malham Iron Age Pipe, the above YouTube video is of the actual found pipe being played !
I was asked if I could repair and clean up an old cassette tape, recorded (open mike) from an even older 78 record
here's what I managed with full scratch, rumble, crackle and pop filters in Audacity http://audacity.sourceforge.net/ the original recording was done in a house
next to Hunslet train shunting yard which can be heard towards the end, even though I removed allot
I was given a photocopy of a pamphlet about the pipe, at the same time, which I've photo'd and have included here.
Also I visited the area on a Molehill expedition looking for Flints here http://teddytourteas.blogspot.co.uk/2012/03/its-not-easy.html
just thought I'd share cheers all Danny