This Western adventure radio series began on the West coast in 1939 and was sponsored by Meadow Gold dairy products. This 1940 club member button is among the very rarest radio club buttons and was obtained by the child sending in their photo which was then paired with photo of Lightning Jim and placed into a button with an oval front window. The club member is designated on the button as belonging to "Lightning Jim's Special Reserve". Exc and displays Mint. Two seen in our 51 years.