Engraved Copper Printing Blocks

I've been looking at these copper engraved printing blocks for the past month at the auction house and finally bid on them this past weekend. I have no idea on how these work or what type of ink to use, so if you know please shoot me an email. Most of the images are in the style of Japanese wood block prints. They are all mounted on wood with tiny nails holding them down. I've done a Internet search on how use them but I must not know the correct terminology to find a helpful site.