Took a while until the penny dropped.
I think this is a Driggs Dart.
Mike, if you are looking for a specific term at aerofiles there is no need to use only the search function there but you can use google as well.
E.g. if you are looking for a two-seated open biplane at aerofiles you have to type at google:
2pob site:aerofiles.com
and google will show you all pages where the term 2pob appears.
And of course you can exchange 2pob for any other term you are looking for and it even works when you type in
two different terms, e.g.
2pclwm ranger site:aerofiles.com
will show all pages where 2pclwm and ranger appear (not necessarily together in one type of aircraft).
BTW: this search method should work with any other internet page.
Hope this will be helpful for you.