Lefty friendly pumps:

I don't know who produced the lefty safety for the model 17 Remington pump, it is a different part than the one in an Ithaca 37. A guy in northern MN, active on the 16 gauge website bought a gun with it installed. I traded my righty for his lefty. It is identicle to the Remington produced safety except it is mirror image, tool marks in the same spots. I have two barrels for this gun, one can often simply switch barrels on the Remingtons, something not often possible on the later Ithaca 37s.
The Winchester 1912 has a Williams "Big Button" safety installed. I like this safety, and have a similar version in my Ruger 44 magnum carbine. This was my Uncles "barn gun", from about the start of the great depression until perhaps 1978. It looked like it, too, my hands got rusty when I handled it. It has new blue and wood, and isn't a collector, but, I never understood the words "collector" and "pump" being used in the same sentence, anyway.
I never see spent shells on guns since my right eye is closed, being crosseye dominant. My model 17 and 1912 are righthand unfriendly at this point.
Best,
Ted