I have a porcelain Frontier Rarin To Go sign that has been re-purposed many times and has a few coats of paint on it. It is a keyhole shaped sign and is about 6 feet tall and wide. I also have the heavy frame that was mounted to a pole. I can get the frame blasted and powder coated. What is the best way to remove the many layers of paint from the sign without damaging it?
The sign has also been used as target practice so it probably isn't in great shape to begin with.I tried to post a picture but it said it is too big and I don't know how to shrink it.

Thanks
Don