Sale 1 is incorrect, I paid much less https://imgur.com/BixiCro (68 Keys with Keys at $2.13 on that day, USD), which is less than STN's current buy order and was lower than backpack buy orders at the time. It shows higher on the graph because a different Firewall sold at the same time (hence the "2 sold"). It also sold within an hour of listing, which would be a QS. Feel free to confirm through a current subscriber on Clone's discord.

Feel free to add me for confirmation if you ever are unsure of what I sold something for; but chances are it'll be unusable for one reason or another. As is the case with Sale 2 also, where the hat went to a gambling bot before being picked up by frog.