Curtiss 90HP prop id please

[Rocketeer]

Hi, amongst my collection, I have lots of lumps of prop. One of them is in the photo. I was wondering if anyone can narrow the type of aircraft to a Jenny or DH6?

[Dbahnson]

"AD543" is the drawing number of the British "Air Department, Admiralty" and is listed for use on a Maurice Farman Shorthorn or a DeHavilland DH6 using a Curtiss OX-2 engine. It's not listed for the JN4.

[Rocketeer]

Brilliant, thanx would be nice if it was a Shorthorn. I have a DH6 prop for the other engine type. Would the batch help id the type?