Marked patents dates July 16, 1872; 129,056 by C. Rebstock and A. Hart assigned to C.R. Brothwell & Co. Bridgeport, CT and January 14, 1873; 134,931 by C. Rebstock and J. Ottner.  Lead with bronze covering. Note the large filling hole and small relief hole in the end of the stem as described in the patent.