1 usable sale? Really?

-Appears untrace: http://backpack.tf/profiles/76561198043615055#!/compare/1490313600/1490400000 http://backpack.tf/profiles/76561198164651434#!/compare/1490313600/1490400000

-Sold for a CH handy(18, in date) + bumper cart taunt(3 keys) (21 keys total): http://backpack.tf/profiles/76561198004517334#!/compare/149048640/1490572800

-Added tons of keys for an aces crones, seems very low (and bulky): http://backpack.tf/profiles/76561198172310638#!/compare/1491696000/1492041600

-Sold for 14 pure + some ref, seems low: http://backpack.tf/profiles/76561198115102647#!/compare/1491955200/1492041600

-Sold for a miami conquist(~17.5 keys, indate) + 1 pure + some hats (18.5, taking 19 total): http://backpack.tf/profiles/76561198017897278#!/compare/1492214400/1492300800

-B/O caps @ 17: http://www.tf2outpost.com/trade/28875612

-1:1'd for an OF hottie's (18 keys, in date): http://backpack.tf/profiles/76561198213807465#!/compare/1492214400/1492300800

-Added 1 key for a miami hermes (22, in date) (21 total): http://backpack.tf/profiles/76561198281338777#!/compare/1492732800/1492819200

I'll add to this as I go.

EDIT: All done, this needs a range of 17-21.