The badge shown at the above URL and much larger at http://www.156squadron.com/CapBadge.jpg is a post-1953 RAF cap badge for officers below air rank, which is a pretty common item.

The style of crown indicates that it was produced during the reign of HM Queen Elizabeth II. See http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=170090072396 for someone selling the post-1953 and pre-1953 styles of cap badges.

It looks genuine, but if it was sold as a Pathfinder badge of some sort, then it has been wrongly described. The eagle (or albatross) features in many RAF badges.

See http://www.gc-database.co.uk/recipients/GraveleyRC.htm for a photo of the version worn in WW2, and http://www.airtrainingcorps.info/124...ploffbooth.jpg for your version worn by a present-day female Air Training Corps officer.

Forrest