Three are more than one variation to these chips. I see yours are the dragon mold with no sticker on the other side. The most common. I think could give you a good valuation on these.

The chips you have were made in the vault scene and shown in racks. They did not need stickers on both sides.

In a later scene in the vault, it was determined that these plastic chips did not sound realistic when being kicked around the floor, so they made a different set with a "diamond mold". (Note: they never made a $50 in the dragon mold).

These are stickered on both sides. The undrilled ones are the most desirable.

You also see drilled ones out there. I was told somewhere that they tried to drill all of them as people were trying to pass them at the tables.