I took another look at that piece after I read your post. I swear that piece of wood looks like a Pterocarpus. Pterocarpus is a fairly large genus that includes woods from that area of the world.
There is a variety of padauk from Burma (a little different from the African padauk) that is a Pterocarpus, and the wood that is in the picture sure looks a lot like the pieces I have. Also, Narra is a Pterocarpus, and is called New Guinea (sp?) rosewood. I am rambling now, but here is something a few might not know...Amboyna burl and Narra are the same species...Pterocarpus indicus.
Anyway...I did see one source that said Burma rosewood was Dalbergia olivera (looks like what is pictured). Bob, can you confirm what you have pictured is a true rosewood, and is olivera, or could it be a rosewood only in common name, and might be from another genus?
Kelly