The shop I worked at did one back in 1986 or 87. It was a S&W 645 IIRC. He did it with an MMC checkering tool, which was meant for wood, not metal, and needless to say the MMC tool didn't really survive the experience.
I do not have any pictures of the S&W checkered, but they would look like any other gun I checkered.
On these Smiths, I carefully measure the thickness of the frontstrap first, and if its thick enough, I machine the serrations off the frontstrap and checker as I would normally checker any other frame.