First Moonlanding, Who Knows This Coin

I recognise that coin. I sold one similar which was part of a set of 6, which commemorated all of the lunar expeditions etc. I believe it was Franklin Mint or a similar company, and fetched about £100. They were all solid silver 1oz medals. Yours is so shiny it looks to me like solid silver with gold plating, I seem to recognise the coin, but could be wrong. When you drop it onto a hard surface from about 6 inches, does it ring with a very high pitched tone?

Rather than drop it and ding it up, why don't we measure the weight and diameter.