https://backpack.tf/profiles/76561198850274253#!/compare/1612483200/1612569600

https://backpack.tf/profiles/76561198804015732#!/compare/1612483200/1612569600

Untraceable

https://marketplace.tf/items/tf2/15057;15;u703;w3;pk57;kt-3

https://backpack.tf/item/6826457948

$69.99 / $2.09 = 33.49 keys

Pro KS

https://backpack.tf/profiles/76561198986357133#!/compare/1611360000/1611532800

https://backpack.tf/profiles/76561199111664710#!/compare/1611360000/1611446400

Untraceable

https://backpack.tf/profiles/76561199111664710#!/compare/1611446400/1611532800

https://backpack.tf/profiles/76561198287738105#!/compare/1611360000/1611446400

Untraceable

https://backpack.tf/profiles/76561198287738105#!/compare/1611360000/1611446400

https://backpack.tf/profiles/76561198139679163#!/compare/1611360000/1611446400

Untraceable

https://backpack.tf/profiles/76561198139679163#!/compare/1611446400/1611619200

https://backpack.tf/profiles/76561198866821526#!/compare/1610928000/1611532800

Untraceable

https://backpack.tf/profiles/76561198115325995#!/compare/1613088000/1613174400

https://backpack.tf/profiles/76561198206728500#!/compare/1611964800/1614470400

23 keys

https://backpack.tf/profiles/76561198219926077#!/compare/1614038400/1614124800

https://backpack.tf/profiles/76561198139488289#!/compare/1614124800/1614211200

25 keys, then a spec ks was applied

https://backpack.tf/profiles/76561198147143722#!/compare/1613520000/1613865600

https://backpack.tf/profiles/76561198308291703#!/compare/1613692800/1614211200

Seems to be 26 keys leaving 2nd compare

https://backpack.tf/profiles/76561198129205357#!/compare/1614470400/1614556800

https://backpack.tf/profiles/76561198376207024#!/compare/1614297600/1614556800

DBD Fire Fighter - 28 keys https://backpack.tf/suggestion/605cf0f3ff31230b5b4ae201

S. Pro KS Shotgun - 15 keys https://gyazo.com/8c2da6827c4c5ae786723de3244e8bb4

High outlier

https://backpack.tf/profiles/76561198376207024#!/compare/1614297600/1614556800

https://backpack.tf/profiles/76561198276210041#!/compare/1614470400/1614556800

Added ~2 keys of sweets for Isotope Merc Stained Shotgun (Field-Tested), better used there

https://backpack.tf/profiles/76561198276210041#!/compare/1614729600/1614816000

https://backpack.tf/profiles/76561198144430577#!/compare/1614729600/1614816000

Added keys for Iso Aqua Marine FT, better used there

https://backpack.tf/profiles/76561198144430577#!/compare/1616544000/1616630400

https://backpack.tf/profiles/76561198295109460#!/compare/1519862400/1618876800

25 keys

https://backpack.tf/profiles/76561198026129220#!/compare/1611273600/1611360000

https://backpack.tf/profiles/76561198062420532#!/compare/1611273600/1611360000

It looks like 30, but histories don't match

https://backpack.tf/profiles/76561198062420532#!/compare/1611792000/1611878400

https://backpack.tf/profiles/76561198142261248#!/compare/1611619200/1611878400

Only 8 keys matches, 16 leaving 2nd compare

Sales:

23

25

25

30?

33

The Pro KS influence the price

https://backpack.tf/classifieds?item=Rocket+Launcher&particle=703&texture_name=Aqua+Marine&wear_tier=3

https://gyazo.com/f207090481dd6a79ac2d3cf9ca171c32

30 keys for 3 months

30 keys for 7 days

Going with 23-25