Here is another type of ad chip. These all have a flat blank brass area on the reverse and all are oversize chips.

The white chip was issued to distributors of Oregon Lottery tickets to be used as "scratchers" for the scratchoff tickets. The sharp brass edge worked very well!

Qume is a disk drive makers. Pacific Bell used to be the BellSystem phone company for the west. Rocking R is interesting but I haven't identified it. Mauna Lanai is a Hawaii resort if I remember right.

New Beginnings is unidentified but shows what the brass core looks like before molding the plastic.

Anyone have ideas for the other unidentified companies?