Sale 1:

https://backpack.tf/profiles/76561198363395191#!/compare/1580515200/1580601600

https://backpack.tf/profiles/76561198135961389#!/compare/1580428800/1580860800

Untrace

sale 2:

https://backpack.tf/profiles/76561198135961389#!/compare/1582675200/1582761600

https://backpack.tf/profiles/76561198111142727#!/compare/1582588800/1582761600

Sold for Slumber Cranial(18)

https://bot.tf/stats/listings/Y9GNGWNW

B/O of 18 keys

Sale 3:

https://backpack.tf/profiles/76561198834678807#!/compare/1581292800/1583280000

https://backpack.tf/profiles/76561197960499988#!/compare/1582675200/1582761600

untrace

sale 4:

https://backpack.tf/profiles/76561197960499988#!/compare/1583280000/1584489600

https://backpack.tf/profiles/76561198053720151#!/compare/1583366400/1583452800

Bulk

sale 5:

https://backpack.tf/profiles/76561198053720151#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198062075870#!/compare/1577318400/1583625600

Untrace

Sale 6:

https://backpack.tf/profiles/76561198062075870#!/compare/1583625600/1583971200

https://backpack.tf/profiles/76561198842625332#!/compare/1584403200/1584576000

Untrace

sale 7:

https://backpack.tf/profiles/76561198334598690#!/compare/1582675200/1582761600

https://backpack.tf/profiles/76561198209747051#!/compare/1584316800/1585526400

Keys

sale 8:

https://backpack.tf/profiles/76561198002757046#!/compare/1580428800/1580515200

https://backpack.tf/profiles/76561198223429284#!/compare/1580515200/1580601600

Sold for ~15 keys

sale 9:

https://backpack.tf/profiles/76561198223429284#!/compare/1580688000/1580774400

https://backpack.tf/profiles/76561198294760940#!/compare/1580688000/1580774400

Sold for ~14 keys

sale 10:

https://backpack.tf/profiles/76561198294760940#!/compare/1581552000/1581897600

https://backpack.tf/profiles/76561198117121811#!/compare/1581811200/1581897600

Sold for ~12 keys

sale 11:

https://backpack.tf/profiles/76561198117121811#!/compare/1581811200/1581897600

https://backpack.tf/profiles/76561198088138447#!/compare/1581811200/1581897600

Sold for 12 keys

sale 12:

https://backpack.tf/profiles/76561198088138447#!/compare/1581811200/1581897600

https://backpack.tf/profiles/76561198131081286#!/compare/1581811200/1581897600

Sold with 7 keys for C9 Noble(17.5)

Total is 10.5 keys

Sale 13:

https://backpack.tf/profiles/76561198131081286#!/compare/1582070400/1582156800

https://backpack.tf/profiles/76561198042983712#!/compare/1582070400/1582156800

Sold with 2 keys for Steaming Charmer

Charmer isn't updatable:

https://pastebin.com/7jn1dw2E

sale 14:

https://backpack.tf/profiles/76561198042983712#!/compare/1582070400/1582156800

https://backpack.tf/profiles/76561198162963055#!/compare/1582070400/1582156800

Sold for G Fetti Hallmark

sale 15:

https://backpack.tf/profiles/76561198162963055#!/compare/1582156800/1582243200

https://backpack.tf/profiles/76561198176125115#!/compare/1582156800/1582243200

Bulky

sale 16:

https://backpack.tf/profiles/76561198176125115#!/compare/1583884800/1584057600

https://backpack.tf/profiles/76561198939623625#!/compare/1583884800/1584057600

Sold for Miami Dogger + 1 key

Dogger Mini:

https://backpack.tf/suggestion/5eac48eeef0897487729ad40

Suggestion for 15 keys

Total is 16 keys

https://bot.tf/stats/listings/MXX101P6

B/O of 16 keys

Sale 17:

https://marketplace.tf/items/tf2/937;5;u56

$23.95 / $1.77 = 13.53 keys

$15.9 / $1.78 = 8.93 keys

$16.07 / $1.67 = 9.62 keys

Total sales @:

9, 10, 11, 12, 12, 14, 14, 15, 16, 18 keys

buyers up to ~9.83 keys,

unsold at 18 keys for 2 months,

https://i.imgur.com/WfQYkIl.jpg

calling 18 high,

10 low,

taking 11 - 16 keys.