The Palm Hotel was what supposed to have replaced the Dupont Plaza after the fire, however it never opened. The chips were discovered by Al Rollins who at the time was selling them by the box, I believe he may have had the whole lot(quantity unknown). After Al passed it is believed that most were destroyed(thrown away), exact quantities left are unknown, There are many sets out there including the roulettes making the chips common . Puerto Rico chips are in a big slump unless it is a rare chip. Hope this helps. Perhaps Al Rollins jr can give some more info...I haven't heard from him in a while.