I got curious and sent the seller a question about this guitar the other day... and learned another kinda' unusual detail; it's a 25" scale. As custom as that guitar already is, not really that surprising.
I also wasn't aware there was another rosewood indigenous to Madagascar, but this is a separate Dalbergia subspecies... it's really something. I don't remember seeing another Alembic made of Bois De Rose.
Someone had a heluva collection.