The 2021 Silver Britannica Coin Four, new technologies: latent images, laser animation, micro-text and tincture lines add layers of security and animating effects. DALLAS (PRWEB) November 11, 2020 JM Bullion introduces the dazzling 2021 Silver Britannia Coin with state-of-the-art security features that make it, “the world’s most visually secure […]