Vintage Smokey Grey Industrial Safety Glasses Spectacles w/ Side Shields.  Inside measurement 4.75 inches.  The length of the arm before it starts to bend for the ear is 4.25 inches.  Marking on the inside, but can't make out the writing.  On the outside bridge of the glasses marked "J".  GOOD condition.  Email any ?s.  Ask about shipping worldwide.  Best of luck!