VERY NEAT ORIGINAL MILITARY PACKAGE OF 10 BLACK AND DECKER VALVE GUIDE CLEANERS STAMPED 5/16. I BELIEVE THESE ARE MOST LIKELY FOR AN AVIATION APPLICATION. THEY WERE PACKED BY ROSSFORD ORDNANCE DEPOT IN 1953! EACH CLEANER IS INDIVIDUALLY WRAPPED/ SEALED AND COATED IN WHAT LOOKS TO BE COSMOLINE(GREASE).  YOU CAN SEE IN PHOTOS THAT I CLEANED ONE UP AND THEY STILL LOOK BRAND NEW UNDER THE COATING. YOU WILL RECIVE ONE UNOPENED BOX OF 10 VALVE GUIDE CLEANERS. GREAT PEICE OF HISTORY FOR YOUR COLLECTION OR COULD STILL BE USED.