A Schild – AS Calibre 1901 – Part No. 243 Cannon pinion without clam notch (NOS) Related posts: A Schild – AS Calibre 1712 – Part No. 243 Cannon pinion without clam notch (NOS) A Schild – AS Calibre 1901 – Part No. 240 Cannon pinion with clam notch (NOS) A Schild – AS Calibre 2060 – Part No. 243 Cannon pinion without clam notch (NOS)