send a PM to Gail (member on here) she will tell you who its registered to . if the finder doesnt want it ,i will have for my collection E - mail gail@whpu.org.uk
you asked about circular vents ?? over here we have some which are fixed on some housing below the "landers" to allow air circulation in the attic space that allows moisture to dissapate ? so try a builders merchant or similar maybe ??
nice to see some pic,s Johny , last year was my first Winter in Scotland after moving "up country " from Wales . i had to cover the lower vents and windows with perspex (what you call plexi-glass) to save the snow coming into the loft
all playing songs for the "other hawf" , musta had tae much ta drink i had too much earlier , will play my stuff now. http://www.youtube.com/watch?v=Bomv-6CJSfM o yeah ...............