This is a Ronson pocket lighter with British patent 621570 (1946) which refers to mechanisms for Ronson's windproof lighters, like the famous Ronson Whirlwind, with production of these models spanning from around 1941 into the mid-1950s (e.g., 1949, 1950s), making them vintage items from the post-WWII era, though the patent itself is from 1946, as shown on Google Patents and by collectors identifying their lighters. While the patent is 1946, these lighters were produced for years after, with common dates being 1949, the 1950s, and up to around 1956 for the Whirlwind model. In short, a Ronson lighter with Patent 621570 is a collectible from the late 1940s or 1950s, authenticating its design origin. The lighter is in good working condition. See images for best possible impression. Signed delivery method with tracking number.