Very curious about this beacon. I have a real soft spot for four beam beacons, so this one caught my attention mostly because I can get one NIB for pretty cheap. I've seen a few on YouTube and two of the three seem to have a rather high rotation speed while one had a nice and slow rotation speed. What I really want to know is if this beacon is a Grote rebrand. If so, I'm guessing a Fed Sig beacon. If this is the case, did this beacon come in fast and regular speed variants? Also, if I wanted to find replacement domes for this beacon, what could I replace them with? I want to replace one with a clear dome, but am having trouble finding replacements. Any info about this beacon would be very much appreciated!