Help w/ IHP RPD's - 3 coins with photo's and thoughts

Hello all,
I bought a couple dozens Indian Head Pennies yesterday and pulled 3 RPD's from the lot. I'm not great at attributing these so I thought I'd ask for help. I think I was able to ID one of them but the other 2 I can't find.

1907 RPD-002 - There's RPD evident at the bottom of the 7 and the 0. Looks like a solid match.
1901 ???? - all 4 digits show a minor left/right. It sort of looks like machine discharge doubling but I'm not familiar that in IHP's. Pretty certain it's not Longacre double... Not sure.
1905 ???? - strong doubling under the 1. Some under the tail on the 5. Possible minor doubling on the other digits.

Any help with these is appreciated.

 

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It helps to have full images of both sides of the coin but I'll guess.
1907 Snow 6 or 17.
1901 I'll go with MD. Crazy guess.
1905 Snow 29

 

Is the Snow number related in any way to the coneca or CPG listing?

 

Not really. Rick Snow wrote the book on Indian Head Cents. Actually several books.
This is his site. https://www.indiancent.com/