Resuggestion from https://backpack.tf/suggestion/60078285418fb204195c1961

https://marketplace.tf/items/tf2/30549;5;u60

$29.95 / $1.80 = 16.64 keys

$40.99 / $2.10 = 19.52 keys

https://mannco.store/item/14817

$40 = 24 keys

$50 = 27 keys

scammers

https://backpack.tf/item/7956214051

https://backpack.tf/item/7957262896

nothing

https://backpack.tf/item/7955453293

https://backpack.tf/item/7888705248

https://backpack.tf/profiles/76561198984595114#!/compare/1610928000/1611014400

https://backpack.tf/profiles/76561198198440035#!/compare/1610928000/1611014400

4 spells and refined kekwait

https://backpack.tf/profiles/76561198860429470#!/compare/1610755200/1610841600

https://backpack.tf/profiles/76561198112155547#!/compare/1610755200/1610841600

14 keys and refined

https://backpack.tf/profiles/76561198096447036#!/compare/1603843200/1604448000

https://backpack.tf/profiles/76561198860429470#!/compare/1604448000/1605139200

Untraceable

https://backpack.tf/profiles/76561198054758757#!/compare/1608940800/1609200000

https://backpack.tf/profiles/76561198850274253#!/compare/1609113600/1609200000

Untraceable, but possible it was bought from mannco.store and then later sold to quicksell.store

https://backpack.tf/profiles/76561198152017357#!/compare/1605657600/1607558400

https://backpack.tf/profiles/76561198415964653#!/compare/1606262400/1607731200

Untraceable

https://backpack.tf/profiles/76561198869390792#!/compare/1611705600/1611792000

https://backpack.tf/profiles/76561198011707565#!/compare/1611360000/1611792000

Untraceable

https://backpack.tf/profiles/76561198011707565#!/compare/1611360000/1611792000

https://backpack.tf/profiles/76561198088975567#!/compare/1611705600/1611792000

Bulk for keys

https://backpack.tf/profiles/76561198850274253#!/compare/1611014400/1611100800

https://backpack.tf/profiles/76561198139370347#!/compare/1611014400/1611100800

Untraceable, but this is the one that was previously listed at ~17 keys

I think it was sold to stn.tf and then sold on Marketplace

https://backpack.tf/profiles/76561198415964653#!/compare/1612310400/1612483200

https://backpack.tf/profiles/76561198139679163#!/compare/1612310400/1612483200

Added stuff for Miami Nights Human Cannonball, better used there

https://backpack.tf/profiles/76561198139679163#!/compare/1613260800/1613433600

https://backpack.tf/profiles/76561198048851745#!/compare/1613347200/1613433600

14 keys and 10 refined to a buyer

Sales

14

14

17

20

24

27

For the time the previous suggestion was up, generic and specific buyers have been around 14, so that point is low. 24 and 27 are high looking at other sellers, so going with 17-20, cutting off the lows and highs.

Past suggestion: https://backpack.tf/suggestion/60078285418fb204195c1961