Sale 1:

https://backpack.tf/profiles/76561198084666083#!/compare/1581638400/1581897600

https://backpack.tf/profiles/76561198023895008#!/compare/1581724800/1581811200

Untrace

sale 2:

https://backpack.tf/profiles/76561198023895008#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561198046921199#!/compare/1583712000/1583884800

Bulk

sale 3:

https://backpack.tf/profiles/76561198046921199#!/compare/1583712000/1583884800

https://backpack.tf/profiles/76561197996992703#!/compare/1583798400/1583884800

Sold for HG Crasher + C9 Soviet(11) + C9 Samur-Eye + ~3 keys in sweets

Samur-Eye mini:

https://backpack.tf/suggestion/5eb9d627ea8b9f168d029c3d

suggestion for 12.5 keys

Crasher Mini:

https://backpack.tf/suggestion/5eb9dae95475003163082feb

Suggestion for 22.5 keys

Total is 49 keys

https://bot.tf/stats/listings/466REVJL

B/O of 45 keys, capping

sale 4:

https://backpack.tf/profiles/76561197996992703#!/compare/1584057600/1584230400

https://backpack.tf/profiles/76561198429767246#!/compare/1584057600/1584144000

Bulk

sale 5:

https://backpack.tf/profiles/76561198429767246#!/compare/1584057600/1584316800

https://backpack.tf/profiles/76561198118922746#!/compare/1584057600/1584144000

Sold for keys

Sale 6:

https://backpack.tf/profiles/76561198118922746#!/compare/1584230400/1584316800

https://backpack.tf/profiles/76561198886167680#!/compare/1584057600/1584316800

Sold for 40 keys

Sale 7:

https://backpack.tf/profiles/76561198886167680#!/compare/1585353600/1585440000

https://backpack.tf/profiles/76561198006295346#!/compare/1585353600/1585612800

Untrace

sale 8:

https://backpack.tf/profiles/76561198006295346#!/compare/1588204800/1588377600

https://backpack.tf/profiles/76561198140565712#!/compare/1588291200/1588377600

Bulk

sale 9:

https://backpack.tf/profiles/76561198140565712#!/compare/1588982400/1589068800

https://backpack.tf/profiles/76561198065216945#!/compare/1588982400/1589068800

Sold for 35 keys (keys came form sale of Rose)

Total sales @:

35, 40, 45 keys

considering 45 is capped from higher,

taking 35 - 40 keys.