It is very unusual for that number of bids...
I checked the previous chip sales on ebay all the time and can't remember any item that got that many bids for that little of an amount. Reeks of shill bidding but I doubt it since the bidders have bid on other chips before. I just checked the previous 30 days on ebay and there wasn't one item that got that many bids and many have sold for far more.
Mike