1865 2c Repunched Date, Toning?

This is a great example of that RPD, which you correctly attributed as FS-1302. It looks to Original to me. The planchets back then were all different mixes of colors due to improper alloy mixes.

-CH27

Thanks your your advise and information. I bought it. Stay safe.

Yes what you are seeing isn't actually doubling in the normal sense of the word. It's not die doubling, but something called "Longacre's Doubling."

What could possibly cause this effect? There are theories, but no definitive answers. The first, and most popular reason is the master die was placed into the die steel to form the master die. In order to add details, the engraver would shave the sides of the die punch , leaving a lip on the punch's sides. The engraver could have added an 'extra hard punch' to the punch thereby leaving the shaved sides effect to the die. This is also known as a Hob or punch shoulder. The "shoulder" would eventually wear off as the die was used, and is why not all coins from that die will show the effect. Those showing this effect are likely early strikes from the die.

Then there is another theory:

After punching the design elements into the master die the engraver would move the punch a microscopic bit. This would produce a 'lip' on the die, and the effect would be to enable the metal to flow more easily into the devices in the die. The theory is that this improvement to the design striking would also have prolonged the life of the dies.

Remember, this effect was added to the master die, not individual dies, and as such is not a doubled die, that is because the master die is only hubbed one time, and that, by definition cannot produce a doubled die. Use of a die would wear away the effect, as would die polishing, since the Longacre effect is delicate and not intended to be reproduced as a part of the design, rather it is done to improve the strike of the coins.

So it is not actually a form of "Die Doubling" and can also be found often on Indian Head cents, and many of the Seated coinage.

Westcoin, thanks for your time and sharing your knowledge. I didn't know about Longacre's doubling. From the link examples you provided it seems my coin is Machine Doubling, some call it Strike Doubling.