David Boyd has a copy of the IHW Observers' Manual that he would like to
dispose of. A scan of this is here:

https://ntrs.nasa.gov/api/citations/19830027693/downloads/19830027693.pdf

If anyone is interested please contact me and I'll put you in contact
with David. Alternatively, if you are going to the BAA Winchester
Weekend, David can hand it over there.

Nick.