Your buying one. 3 are hubbells and rest are dated. Hubbells require threads at tip of socket as they screw onto socket. Great looking pieces in Excellent condition.  Good patina.  Shipping costs include insurance. BID WITH CONFIDENCE AS ALL ITEMS ARE GUARANTEED TO BE AS DESCRIBED OR RETURN FOR A FULL REFUND MINUS SHIPPING.SELLING QUALITY ITEMS ON E-BAY SINCE 1997.TERMS- Buyer pays S&H. ALL LEGAL TENDER ACCEPTED.