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Yes, it's pretty easy. You go to https://steemd.com/@{user name}
Look for {user} authored a post .. On the right side you'll see a hex code, something like 3e7b8cfa
Click on this and you'll see that version of the post. This works for comments too.

edit: oops I think i misunderstood the question.

I just noticed that. I'm not sure. I'm assuming you can still access it if you are running steemd and piston. I need to get a linux box up and running and find out.