Sold for 280 keys pure(I sold 2 keys right away on the steam community market to buy a new halloween key & unboxed a 'corpse carrier', idk why it only says 278 but it was 280 pure), don't know of any other sales other than when I purchased it for around 200~

https://backpack.tf/profiles/76561198390580688#!/compare/1633305600/1633564800 --> 280 pure sale

https://backpack.tf/profiles/76561198390580688#!/compare/1630627200/1630713600 --> I paid Purple Energy Your Worst Nightmare(priced at 74), Green Energy Front Runner(priced at 71.5), Green Energy Tartan Spartan(priced at 40) --> 185