A year ago I wrote about the interesting instruments included in the score of Villa's great early masterpiece Amazonas. Since then I've come across conductor Roberto Duarte's interesting book Revisão das Obras Orquestrais de Villa-Lobos, v.2., which is a detailed description of the scores of important orchestral works.
Duarte's book includes some interesting pictures of two instruments that he actually used in his landmark recording of Amazonas for Marco Polo in 1990. Here is the Violinophone:
and the Viola d'amore:
It's great that this important disc is once again in print. I'm listening to Amazonas right now at the Naxos Music Library: what an amazing work!