Unmarked legend 18x27mm for legend holder 30x50mm, Harmony XB4, 1 black side, 1 red side

This Harmony ZBY unmarked legend has black or red background. It is compatible with Harmony XB4 and XB5 push buttons and pilot lights. This legend provides clear labelling for your push buttons. It is supplied with blank plate for custom engraving to support any desired machine operation and is compatible with any standard 22mm Harmony control and signaling units. It provides clear and resilient symbol marking on the label, with high contrast.