div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader039fdocumentsnetreader039viewer20220218025b7a77177f8b9ab87f8bf9a2html5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: €¦ · Certificate of Calibration Stainless Steel Ruler Model 2020A 6 Length Serial Number: C57023 Date of Certification: as the OEM manufacturer certifies that this stainless src=https:reader039fdocumentsnetreader039viewer20220218025b7a77177f8b9ab87f8bf9a2html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdiv