On an Ithaca Knick SBT, ser# says made (late?) 1956, is a RayBar front sight correct?
The rib is D&T 6-48 which is what the RayBar is,,but seems as if something like ivory would be more appropriate on this.

It is original from the factory.

Ithaca introduced and aggressively marketed the RayBar in 55'

Thanks for the replys!

I admit to replacing the Raybar with an Ivory on my late 5E SBT. There, my duty in the confessional done for the year.