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Now that I’ve accumulated most of the “collectible” guns in the MK series, I’m running out of things to buy!
What I don’t have is a seconds or “S” marked gun.
If anyone has one that they would be willing to part with, let me know.
I don’t know if it’ll be in my budget, since I’ve never seen one for sale, but
Let me know.
Also, any other rare and/or unique mk’s.
I currently have:
All types red eagles, duplicates, overroll, u.s. marked (MKI, no MKII)
T514, and several of the MKII/III collectibles.

Not sure about the "S" marked pistols but Chad addresses some "U" marked ones on page 174 of his "Encyclopedia of Ruger Pistols".
Bennett

What I don’t have is a seconds or “S” marked gun.
If anyone has one that they would be willing to part with, let me know.
I don’t know if it’ll be in my budget, since I’ve never seen one for sale, but
Let me know.
Also, any other rare and/or unique mk’s.
I currently have:
All types red eagles, duplicates, overroll, u.s. marked (MKI, no MKII)
T514, and several of the MKII/III collectibles.
[/quote] what's a overroll gun. In all my years of collecting these never heard that term. I have a few S guns several D guns and a couple with upside down roll marks.

Here is a T512 S prefix and the other 6" standard S on top of receiver. I know of another T512 with the S on opposite side of serial number just don't have a picture on my phone of it. Good luck in your search.

I currently have:
All types red eagles, duplicates, overroll, u.s. marked (MKI, no MKII)
T514, and several of the MKII/III collectibles.
[/quote]

What is an "Overroll" gun. Don't think I've heard that term before
Could you explain. Thanks

I’m so sorry for the waaaay late reply.
The “over roll” as I was told it was known as, has the stamping on the right side of the receiver stamped upside down over the stamping on the left.
Kinda like a coin with a double die stamp.
I’ve heard it also called a double roll.

Rickkling wrote: ↑Sun Nov 23, 2025 8:31 pm I’m so sorry for the waaaay late reply.
The “over roll” as I was told it was known as, has the stamping on the right side of the receiver stamped upside down over the stamping on the left.
Kinda like a coin with a double die stamp.
I’ve heard it also called a double roll.

Now THAT is unusual and super COOL !!!

Rickkling I have two of those, one is a 10 prefix 4" barrel the other is a 6" with a 11 prefix. What barrel length and prefix is yours. Now I know of three.

Better picture of the RST6. These pictures are off my computer so sometimes it gets little lines in them.

Why is one roll marking upside down?