In the event of any dispute under these Conditions of Sale, or any dispute between the auctioneer and bidders, or between any parties requesting inspection of any of the lots of the auctioneer, or between persons offering their lots to be auctioned and the auctioneer, the exclusive jurisdiction and venue over any such dispute shall be in the Federal and state courts having jurisdiction and located in Philadelphia, Pennsylvania, the parties waiving any other jurisdiction or venue to which they many be entitled.