Sale 1:

https://backpack.tf/profiles/76561198301456164#!/compare/1580169600/1580256000

https://backpack.tf/profiles/76561198448263141#!/compare/1580256000/1580342400

Sold for OF Company

use there

https://bot.tf/stats/listings/425JQ3ZV

B/O of 14 keys

Sale 2:

https://backpack.tf/profiles/76561198448263141#!/compare/1580342400/1580688000

https://backpack.tf/profiles/76561198342161127#!/compare/1580256000/1580342400

Sold for Blizzardy Nickel

Nickel Mini:

https://backpack.tf/suggestion/5ea9049b406b0334031da806

Suggestion for 11.5 keys

Sale 3:

https://backpack.tf/profiles/76561198342161127#!/compare/1582848000/1582934400

https://backpack.tf/profiles/76561198206610201#!/compare/1582502400/1582934400

Sold for 14 keys

sale 4:

https://backpack.tf/profiles/76561198206610201#!/compare/1583020800/1583193600

https://backpack.tf/profiles/76561198072998203#!/compare/1582934400/1583020800

Sold for 10 keys

sale 5:

https://backpack.tf/profiles/76561198072998203#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198796395930#!/compare/1583020800/1583107200

Sold with P Fetti Brass(10) for Slumber Oiled(17)

low / bulk

sale 6:

https://backpack.tf/profiles/76561198796395930#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561199017227229#!/compare/1583280000/1583366400

Untrace

sale 7:

https://backpack.tf/profiles/76561199017227229#!/compare/1583366400/1583539200

https://backpack.tf/profiles/76561198196410274#!/compare/1583452800/1583539200

Sold for Steaming Armored

use there

https://bot.tf/stats/listings/4PPNK01Z

B/O of 13 keys

Sale 8:

https://backpack.tf/profiles/76561198196410274#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561199015360978#!/compare/1583452800/1583539200

Sold for C9 Tartan + ~1 key in sweets

use there

https://bot.tf/stats/listings/4ZK88WDQ

B/O of 13.5 keys

Sale 9:

https://backpack.tf/profiles/76561199015360978#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198097499917#!/compare/1583452800/1583539200

Untrace

Sale 10:

https://backpack.tf/profiles/76561198097499917#!/compare/1583539200/1583625600

https://backpack.tf/profiles/76561198095553478#!/compare/1583539200/1583625600

Sold for ~11 keys

sale 11:

https://backpack.tf/profiles/76561198095553478#!/compare/1583625600/1583712000

https://backpack.tf/profiles/76561198318065526#!/compare/1583625600/1583712000

Sold with ~5 keys in sweets for HG Bolted

bolted Mini:

https://backpack.tf/suggestion/5ea8fff72a9ec94a3f18f191

Suggestion for 16 keys

Total is 11 keys

sale 12:

https://backpack.tf/profiles/76561198318065526#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561198212556179#!/compare/1583539200/1583971200

Untrace

sale 13:

https://backpack.tf/profiles/76561198318065526#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561198212556179#!/compare/1583539200/1583971200

Untrace

sale 14:

https://backpack.tf/profiles/76561198212556179#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561198116693979#!/compare/1583884800/1583971200

Sold for ~10 keys

sale 15:

https://backpack.tf/profiles/76561198116693979#!/compare/1583971200/1584057600

https://backpack.tf/profiles/76561198196410274#!/compare/1584057600/1584144000

Untrace

sale 16:

https://backpack.tf/profiles/76561198196410274#!/compare/1584057600/1584144000

https://backpack.tf/profiles/76561198268575795#!/compare/1584057600/1584144000

Sold for C9 Mmph + 3 keys

use there

https://bot.tf/stats/listings/4R0PXEPK

B/O of 13.5 keys

Sale 17:

https://backpack.tf/profiles/76561198268575795#!/compare/1584144000/1584230400

https://backpack.tf/profiles/76561198374206487#!/compare/1584144000/1584230400

Sold for 10 keys

sale 18:

https://backpack.tf/profiles/76561198374206487#!/compare/1584316800/1584403200

https://backpack.tf/profiles/76561198341699446#!/compare/1584316800/1584403200

Sold for ~10 keys

sale 19:

https://backpack.tf/profiles/76561198341699446#!/compare/1584316800/1584403200

https://backpack.tf/profiles/76561198386189638#!/compare/1584144000/1584403200

https://backpack.tf/profiles/76561199015360978#!/compare/1584316800/1584403200

Untrace

sale 20:

https://marketplace.tf/items/tf2/30915;5;u33

$21.99 / $1.69 = 13.01 keys

$22.22 / $1.67 = 13.31 keys

$29.99 / $1.79 = 16.75 keys

Total sales @:

10, 10, 10, 10, 11, 11, 11.5, 13, 13, 14, 17 keys

buyers up to 10 keys,

note that sales at 10 happened when buyers were lower:

https://bot.tf/stats/listings/4KV57Q58

calling 17 high,

taking 10 - 14 keys.