from our discussion the other day Russell Street sent me a set of exploded diagrams of the offerings from federal. the 17 series are titled strat-o-ray with the 17 being a standard and the 174 a super beacon ray. I had forgotten about the 176. it's a 4 bulb with them all horizontal as the 174 but you can shut off two of them. they had skirt size from 5 to 6.5, 7.5, 9 and 11 inches. the 184 has a standard and high skirt modal. I'm guessing the height is the same as the skirt on the cj184 in the H modal. so here is the set of them they also list globes in red,amber,clear and blue in both glass and plastic. all with split domes in blue-clear, amber-red. red-blue, amber-blue red-clear and amber-clear. all are offered in both 6,12 and 24 volt. as soon as I can post pictures again I'll do so.