I found the Red denom chip just before the convention in May. Both are "No Value Souvenir" chips that were made for money clips & key rings. The green denom N7073, has a white inlay on reverse with blue print w/ fountain and "Souvenir No Value" valued about $20. The red denom has all colors reversed on the inlay and is hot-stamped on the reverse, "Souvenir TR King No Value." The red denom is not as common as the green but is still a souvenir chip, valued around $25-30.