https://marketplace.tf/items/tf2/30006;5;u9

$69.99 / $2.13 = 32.86 keys

$69.99 / $2.17 = 32.25 keys

$69.99 / $2.17 = 32.25 keys

I skip tradebacks/scammer trades

https://backpack.tf/profiles/76561198419584303#!/compare/1607731200/1607817600

https://backpack.tf/profiles/76561198982803000#!/compare/1607731200/1607817600

Untraceable

https://backpack.tf/profiles/76561198982803000#!/compare/1607558400/1607731200

https://backpack.tf/profiles/76561198158727485#!/compare/1607558400/1607731200

Untraceable

https://backpack.tf/profiles/76561198158727485#!/compare/1607817600/1607904000

https://backpack.tf/profiles/76561198864760524#!/compare/1607817600/1607904000

Untraceable

https://backpack.tf/profiles/76561198864760524#!/compare/1607904000/1607990400

https://backpack.tf/profiles/76561198131413085#!/compare/1607904000/1607990400

Untraceable

https://backpack.tf/profiles/76561198131413085#!/compare/1607990400/1608076800

https://backpack.tf/profiles/76561199107859525#!/compare/1607990400/1608076800

Untraceable

https://backpack.tf/profiles/76561199107859525#!/compare/1608076800/1608163200

https://backpack.tf/profiles/76561198864760524#!/compare/1607990400/1608076800

Untraceable

https://backpack.tf/profiles/76561198864760524#!/compare/1607990400/1608076800

https://backpack.tf/profiles/76561198202076993#!/compare/1607990400/1608076800

Untraceable

https://backpack.tf/profiles/76561198202076993#!/compare/1608336000/1608422400

https://backpack.tf/profiles/76561198311498888#!/compare/1608336000/1608422400

Sold to stn.tf for ~30.5 keys

https://backpack.tf/profiles/76561198002757046#!/compare/1610064000/1610150400

https://backpack.tf/profiles/76561198088229262#!/compare/1609632000/1610150400

30 keys

https://backpack.tf/profiles/76561198847672167#!/compare/1606608000/1607472000

https://backpack.tf/profiles/76561198271203740#!/compare/1604275200/1607212800

36 keys

https://backpack.tf/profiles/76561198271203740#!/compare/1607817600/1607990400

https://backpack.tf/profiles/76561198888086377#!/compare/1608249600/1608336000

Untraceable

https://backpack.tf/profiles/76561198888086377#!/compare/1608768000/1608854400

https://backpack.tf/profiles/76561198134551377#!/compare/1608768000/1609200000

Untraceable, likely transferred to from bot to owner then sold on Marketplace

https://backpack.tf/item/5373572613

https://backpack.tf/item/5652981109

Nothing

https://backpack.tf/profiles/76561198821151341#!/compare/1610323200/1610496000

https://backpack.tf/profiles/76561198188093413#!/compare/1610323200/1610409600

Looks like bulk

Sales:

30

30.5

32

32

33

36

Buyers to 30.5 https://gyazo.com/1c5da2338feeff0c0c6d3dc97f8dea54

Going with 32-36