I like Smoke

Reading Smoke signals? Nahh that's a puzzle to me

Sellers: - https://snag.gy/XfiJhE.jpg

https://backpack.tf/item/4440155285 - Young @ 21 Keys

https://backpack.tf/item/6516468371 - 6 Days @ 21.97 Keys

https://backpack.tf/item/6093936798 - 6 Days @ 22 Keys

https://backpack.tf/item/4313409602 - 1 Month @ 23 Keys

https://backpack.tf/item/4256346524 - 12 Days @ 23 Keys

Sale 1)

https://backpack.tf/profiles/76561198321908932#!/compare/1526774400/1527120000 - Sold to a buyer for X Keys

Sale 2)

https://backpack.tf/profiles/76561198007255355#!/compare/1527552000/1527638400 - Sold to a buyer for 21 Keys - Seems oddly high

Sale 3)

https://backpack.tf/profiles/76561198042585215#!/compare/1525910400/1525996800 - Sold for a Searing Plasma Halogen Head Lamp (22)

B/O: No Buyout

Sale 4)

https://backpack.tf/profiles/76561198312583107#!/compare/1525651200/1525737600 - Sold for a Neutron Star Nasty Norsemann (21) + <0.5 Keys in Sweets

Sale 5)

https://backpack.tf/profiles/76561197987926027#!/compare/1521504000/1521590400 - Sold to a buyer for X Keys, used Keys on Taunt

Sale 6)

https://backpack.tf/profiles/76561198050194207#!/compare/1521417600/1521504000 - Sold for (19) Keys

Sale 7)

https://backpack.tf/profiles/76561198229432644#!/compare/1523923200/1524009600 - Sold to a Buyer for 17 Keys

Sale 8)

https://backpack.tf/profiles/76561198061667387#!/compare/1523577600/1523750400 - Sold for (20) Keys (IDs Match)

Sale 9)

https://snag.gy/yKq3Fu.jpg - Bot.tf ( https://bot.tf/stats/item?def=30682&q=5&ef=It%27s+a+puzzle+to+me&craft=1&aus=0&ks=0 ) has a Sale for (22) Keys

Sales we have are:

19, 20, 21, 22 and 22

Thanks =)