Perhaps this may be the answer?
Here is the Grand Opening $5 chip. It too has 12 white edge inserts which corresponds to the 12 white edge inserts on the $1 chip I'm looking for in the above posts. It could be that ALL of the 12 white insert chips are no longer in play?? Anyhow, I still need a $1 one. (I wonder if there was a 12 white inserts $25 chip?)