Late 19th and early 20th century clay chips, Dennis. They were sold to anyone and most were not protected designs. See Dale Seymour's book on Antique Poker chips for all the details. There were hundreds of different designs. These are quite old compared to casino chips, but lots exist and most are common designs. Quite a few casino chip collectors also collect the antique poker chips.

The four you show are "engraved chips" and were valued at $4-7 in Dales revised book published in 1998.