In article ,
Sarah Mc. wrote:
Fascinating volume on the use and understanding of the Deviascope, and
the art of Compass adjustment and compensation.1922 hardback ,original
owners inscription otherwise VGC.By H M Wood.Many
illustrations,original fold out chart etc.

http://cgi.ebay.co.uk/ws/eBaxx.dll?ViewItem&rd=1&item

Sarah,

As you know, ads like these are not permitted on this newsgroup.

-steve