A new-old-stock ITE Kirk interlock, with a single working key. Has nameplate with 'Schneider Canada 190D-7'. Never installed or used, robust at nearly 3 pounds, has some tape residue. Shaft diameter 5/8 inch, overall length 3 1/8 inch, width 1 3/4 inches. Key has number code C909099, interlock has number code C700579, lock works smoothly and positively, key trap working perfect. This ITE Schneider Kirk interlock set will be carefully packaged and shipped within two days of payment. All exterior surfaces have been cleaned, and will be cleaned again just prior to shipping. Just after shipping, buyer will receive several pictures to assist with unpacking. See our other sales for additional professional control equipment and lab instruments.