Hi gigi, I'm afraid that I can't give you any sort of date for the stones pictured here. All I can do is say that many of them come from the Burrows Cave collection. This was first discovered in 1982 when amatuer archeologist Russel Burrows stumbled across a collection of over 8,000 engraved stones and various artifacts in southern Illinios. In response mainstream academia has ignored his find or dismissed it as faked.

Many other artifacts and engraved stones were found during the 19th century when new lands were cleared for farming, particularly in Michigan. In the process many engraved stones were unearthed. Despite the fact that many of these finds were accompanied by sworn affidavits modern academia has once again chosen to ignore these discoveries or dismiss them as faked.

Below is what appears to be a representation of the crucifixion on baked clay unearthed, I understand, in the 19th century: courtesy Church of Jesus Christ of Latter Day Saints, Salt Lake City, Utah.