Topic: Conn propeller wood oboe

I am attempting to recreate a laminated chip to repair a Conn propeller wood oboe.  I need to know the actual species of wood used.  It's pretty to look at although the base metal for the key work appears to be cast and brittle.  I also need to determine what the actual plate material is.  One one the trill key finger touches is missing however, the other is intact for a pattern.

Doug Joksch
Oboe, E-Horn, Bassoon