https://www.maddocksmakes.com/product-page/dusenbery-style-score-holders-1-2-wide-with-cable-mount-cylinder-654803
Dusenbery Style Score Holders - 1/2" wide with cable mount cylinder - 654803 | Maddocks Makes
This score holder is normally associated with Dusenbery slitters but can go on many different machines. This one is designed for width of 1/2" to 1-1/2"...