Design Data for NIST SRM 2169: Scale and Distortion Standard for Forensic Topographic Surface Measurement

Design files and data for NIST Standard Reference Material (SRM) 2169, Scale and Distortion Standard for Forensic Topographic Surface Measurement. The designs for the SRM chip and the post are provided in [FreeCAD](freecad.org) format, and in STEP format. A fabrication drawing is included for the SRM post.