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first 2 picture are face of the stone. yes it has been lapped and cleaned. side pictures are not.
it is oil stone Jimmy you are correct . if you pay attention you will see there is white color lines...

"This is very interesting stone. i have took as close as i can pictures.
i have never had time to test this but will do so soon.
it comes from England. i had more then year ago .
very heavy may...