https://marketplace.tf/items/tf2/30704;5;u103

Sep 9 - $126 / $1.85 = 68.11 keys

Sep 9 - $124 / $1.85 = 67.03 keys

Sep 13 - $179.99 / $1.87 = 96.25 keys

Sep 16 - $179.99 / $1.85 = 97.29 keys

Sep 17 - $140 / $1.84 = 76.09 keys

Oct 26 - $200 / $1.84 = 108.70 keys

https://backpack.tf/item/4309899819

https://backpack.tf/item/6994631971

https://backpack.tf/profiles/76561198091502579#!/compare/1599523200/1599609600

https://backpack.tf/profiles/76561198022652091#!/compare/1599782400/1600041600

Looks like September 13 sale

//

https://backpack.tf/profiles/76561198019257028#!/compare/1599177600/1599350400

https://backpack.tf/profiles/76561198069980430#!/compare/1599177600/1599350400

Looks like 79 keys but histories/ID don't match up

//

https://backpack.tf/profiles/76561198069980430#!/compare/1599350400/1599523200

https://backpack.tf/profiles/76561198091502579#!/compare/1599436800/1599523200

Looks like one of the Sep 9 MP sales

//

https://backpack.tf/profiles/76561198212407403#!/compare/1596153600/1597017600

https://backpack.tf/profiles/76561198156255538#!/compare/1596931200/1597017600

Purple Energy Modest + 1 key

//

https://backpack.tf/profiles/76561198156255538#!/compare/1598486400/1598572800

https://backpack.tf/profiles/76561198214230952#!/compare/1598313600/1598572800

Full sale untraceable

//

https://backpack.tf/profiles/76561198103511119#!/compare/1597363200/1598659200

https://backpack.tf/profiles/76561198080179568#!/compare/1597276800/1597363200

Untraceable

//

https://backpack.tf/profiles/76561198080179568#!/compare/1598313600/1598400000

https://backpack.tf/profiles/76561198313998096#!/compare/1598313600/1598486400

Untraceable

//

https://backpack.tf/profiles/76561198080179568#!/compare/1598313600/1598400000

https://backpack.tf/profiles/76561198313998096#!/compare/1598313600/1598486400

https://gyazo.com/d305337d25c8595dd937e3b5a03bd8f4

https://gyazo.com/8b8e0066c4787f1c7dd25ff6c876b5dc

78 keys

//

https://backpack.tf/profiles/76561198313998096#!/compare/1599091200/1599177600

https://backpack.tf/profiles/76561198850274253#!/compare/1599091200/1599177600

Untraceable

//

https://backpack.tf/profiles/76561198850274253#!/compare/1599091200/1599177600

https://backpack.tf/profiles/76561198031748642#!/compare/1598313600/1600041600

Cloudy Moon Stainless Pot - Better used there

//

https://backpack.tf/profiles/76561198031748642#!/compare/1600041600/1600473600

https://backpack.tf/profiles/76561198114402400#!/compare/1600128000/1600214400

Strange Haunted Ghosts Brotherhood - Better used there

//

https://backpack.tf/profiles/76561198055224435#!/compare/1596844800/1597968000

https://backpack.tf/profiles/76561198156255538#!/compare/1596844800/1596931200

70 keys

//

https://backpack.tf/profiles/76561198156255538#!/compare/1597968000/1598054400

https://backpack.tf/profiles/76561197996403345#!/compare/1596931200/1598918400

Smoking Exquisite Rack + 20 keys

Caps at 78 key buyout https://bot.tf/stats/listings/4P0KGK25

https://gyazo.com/af0326edca5c50590b7b36c8f203e053

//

https://backpack.tf/profiles/76561197996403345#!/compare/1598918400/1599782400

https://backpack.tf/profiles/76561199059840687#!/compare/1598832000/1599004800

Untraceable

//

https://backpack.tf/profiles/76561198311981931#!/compare/1599955200/1600041600

https://backpack.tf/profiles/76561198097499917#!/compare/1599955200/1600041600

Bulk

//

https://backpack.tf/profiles/76561198390114053#!/compare/1592956800/1597017600

https://backpack.tf/profiles/76561198156255538#!/compare/1596931200/1597017600

Untraceable

//

https://backpack.tf/profiles/76561198156255538#!/compare/1599696000/1599782400

https://backpack.tf/profiles/76561198114402400#!/compare/1599696000/1599868800

Untraceable

//

sales

67

68

70

76

78

78

79?

96

97

108

https://gyazo.com/af3407320e83990503ba6978029c8739

buyers 79 though

things change in 2-3 months

going with 78-97 because its too many sales to exclude 78 for now, and 108 looks out of the way