I have two questions, I hope somebody can answer.

1. I have seen several Cibie hood lights with both 3 and 4 brackets for the adjuster screws (on the backside of the reflectors attached to the rim). Is there any difference? (they are 100% identical except for this)

2. I don’t know a lot about hood crests, but I have read what I can find on the Pelican and Sreg. I see that the pre 74 was orange bars and later red? I have also seen that some early, pre 74 crests have 901 stamp on the back in the lower right corner, and some have the full parts number stamp in the upper left corner on the backside? What’s the difference? Witch would be correct for my 73?

Thanks
John