Tested and working: Mitsuba TRAD SH-41. This was my favorite horn back in the day. It's been stored in the garage for nearly 20 years. I considered cleaning it up before listing it, but I thought the dirtiness had character, so I'm selling it as is. The difference in dirtiness between the left and right sides is due to the side that was more exposed to the elements when it was installed. I used pantyhose to cover it and prevent water and debris from entering. The sound works perfectly! I will ignore any price negotiations.