I have had these tha I create on the outside of my shop for quite a while and still look good. I create the rust with a process that actually creates rust and not a fake looking rust but REAL rust. I make these to look like originals but that memorial people can afford. I make these myself and can add or subtract the aging if you prefer.
From about a few feet away they look real and original. If you have any questions please let me know.
Let me know if you need sooner All my signs are single sided but can be made double sided. Can make them larger too.