{"version":"1.0","type":"link","title":"Optical variable device - Newikis","description":"An optical variable device or optically variable device (OVD) is an iridescent or non-iridescent security feature that exhibits different information, such as movement or colour changes, depending on the viewing and/or lighting conditions. The particular changes of appearance when rotating and…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}