I've been stripping paint off the rusty 1930s wrought iron garden fence and gate. There is green paint on the gate post, possibly the original coat so it probably contains lead. Is there a safe way of removing the paint and if there is what products should I be using? So far I have managed to removed one coat of crinkled black metal paint from the railings using elbow grease and a sander. There was only one layer of black metal paint there, no green paint. Thank you