A Schild – AS Calibre 1900 – Part No. 468 Cannon pinion guard (NOS) Related posts: A Schild – AS Calibre 1712 – Part No. 468 Cannon pinion guard (NOS) A Schild – AS Calibre 1900 – Part No. 240 Cannon pinion with clam notch (NOS) A Schild – AS Calibre 1900 – Part No. 243 Cannon pinion without clam notch (NOS)