THE CLOCK OPENING IS 2 INCHES IN FRONT AND 2 AND 1/8 INCHES IN THE REAR. IT IS 1 AND 3/8 INCHES DEEP. THE FINISH IS VERY GOOD AND ORIGINAL. IT IS AGED COPPER.THE AGE I WOULD ESTIMATE 1910 PERIOD AND AMERICAN. IT IS HARD TO SAY WHICH MAKER SINCE SO MANY MADE SIMILAR CASES DURING THIS PERIOD. I WOULD GUESS NEW HAVEN OR ANSONIA BUT THAT IS A GUESS. THIS IS A CASE ONLY.