So I spent some time this fall in Baltimore Maryland because of a conference my wife attended. While she was at the conference me and my boy spent the day exploring the area. On one of our last days there we stopped by the Baltimore museum of industry, while enjoying the museum and taking pictures I took a picture of this printing press but somehow neglected to get a picture of any plaque associated with it so I could learn more about it. I've never seen a press before that used what appears to be stone tablets to print off of. Anybody know anything about this style of press?