That Sure Looks like it was from Roberts Collection and the Pedigree. There were two Saharas I would have liked to have in my collection. One was sold before I got to know him. The other I missed in the Potters Auction. Fortunately I was able to pick one up of his others in the last auction. If anyone has either of these Sahara chips I would be interested in them. I do not know who owns them and neither chip has been submitted to the chip guide. One day I hope they will turn up for my collection.

Here was the story behind those HCE chips from his web site.

These chips (all H. C. E. "H" mold) are holed and notched and were the personal chips of the last president of H. C. Edwards, the venerable gambling equipment company that was a major supplier of Nevada casino chips in the 1940's, 50's and 60's. He kept them on a leather string looped through the holes! He just kept this set, one of each; no others. I just have his one of each; you don't have to worry about a box of these popping out of the woodwork. Many of these are one of a kind and were coded after my discovery. (Others, of course, are not so rare, but most are.) This list is a work-in-progress. Not really up to date and finished yet. Except for the holes and notches, the chips are in good condition -- good sharp edges, quite clean, no casino wear and tear. I'll price these when I get the time.