Hello, I have not been able to find any information on this Yamaha bass drum pedal. It was listed on Reverb and came from Belgium. I can't imagine what the designers had in mind (just kidding there). The internal springs adjust from the top and it does have a noticeable squeak. I don't know why the posts have extra little ridges unless they are supposed to look like nodes on Bamboo. I did not see any markings other than the Yamaha on the foot board. The foot board is natural aluminum and the tower is painted gray. Thanks in advance, Joe
I will attach five more photos in a separate post.
(Happy New Year by the way)