Sale 1:

https://backpack.tf/profiles/76561198062926833#!/compare/1579392000/1581984000

https://backpack.tf/profiles/76561198142864294#!/compare/1581897600/1581984000

Sold for 9 keys

sale 2:

https://backpack.tf/profiles/76561198142864294#!/compare/1582675200/1582761600

https://backpack.tf/profiles/76561198272832232#!/compare/1582329600/1582675200

Sold for 11 keys

sale 3:

https://backpack.tf/profiles/76561198272832232#!/compare/1582761600/1582848000

https://backpack.tf/profiles/76561198322957656#!/compare/1582761600/1582848000

Can trace 5 keys

sale 4:

https://backpack.tf/profiles/76561198322957656#!/compare/1582761600/1582848000

https://backpack.tf/profiles/76561198388718471#!/compare/1582416000/1582848000

sold for 11 keys

Sale 5:

https://backpack.tf/profiles/76561198388718471#!/compare/1583798400/1585699200

https://backpack.tf/profiles/76561198196410274#!/compare/1585699200/1585785600

Sold with 2 keys for KaW Noble(13) +negligible sweets

Total is ~11 keys

sale 6:

https://backpack.tf/profiles/76561198196410274#!/compare/1585699200/1585785600

https://backpack.tf/profiles/76561198141670894#!/compare/1585612800/1585699200

Sold with negligible sweets for C9 Modest Scrap(14.5)

Total is ~14 keys

sale 7:

https://backpack.tf/profiles/76561198141670894#!/compare/1585699200/1585785600

https://backpack.tf/profiles/76561198253849058#!/compare/1585785600/1585872000

https://backpack.tf/profiles/76561198831160155#!/compare/1554854400/1585872000

https://backpack.tf/profiles/76561198253849058#!/compare/1585785600/1585872000

Untrace

sale 8:

https://backpack.tf/profiles/76561198253849058#!/compare/1585785600/1585872000

https://backpack.tf/profiles/76561198200420351#!/compare/1585785600/1585872000

Sold for ~11 keys

sale 9:

https://backpack.tf/profiles/76561198200420351#!/compare/1585872000/1585958400

https://backpack.tf/profiles/76561198329662739#!/compare/1585785600/1585872000

sold for 11 keys

sale 10:

https://backpack.tf/profiles/76561198329662739#!/compare/1585872000/1585958400

https://backpack.tf/profiles/76561198329662739#!/compare/1585872000/1585958400

Sold for spells

sale 11:

https://backpack.tf/profiles/76561198809414908#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198064982470#!/compare/1586217600/1586304000

sold for 12 keys

Sale 13:

https://backpack.tf/profiles/76561198064982470#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198193632662#!/compare/1586217600/1586304000

Untrace

sale 13:

https://backpack.tf/profiles/76561198193632662#!/compare/1586304000/1586390400

https://backpack.tf/profiles/76561198069493147#!/compare/1586217600/1586304000

Sold for Vivid Oiled baker

use there

Sale 14:

https://backpack.tf/profiles/76561198069493147#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198341480941#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198341480941#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198170139169#!/compare/1586217600/1586304000

Untrace

sale 15:

https://backpack.tf/profiles/76561198170139169#!/compare/1586304000/1586563200

https://backpack.tf/profiles/76561198175485301#!/compare/1586476800/1586563200

untrace

sale 16:

https://backpack.tf/profiles/76561198175485301#!/compare/1586476800/1586563200

https://backpack.tf/profiles/76561198200309337#!/compare/1586390400/1586563200

Sold for C9 Esteem

use there

sale 17:

https://backpack.tf/profiles/76561198200309337#!/compare/1586563200/1586649600

https://backpack.tf/profiles/76561198083923657#!/compare/1586649600/1586908800

Sold for Blizzardy Wing Mann + ~1 key in sweets

use there

https://bot.tf/stats/listings/MLVZ1D1O

B/O of 12 keys

Sale 18:

https://backpack.tf/profiles/76561198083923657#!/compare/1586649600/1586908800

https://backpack.tf/profiles/76561198136257443#!/compare/1587600000/1585872000

Sold for CPS Bonk

use there

sale 19:

https://backpack.tf/profiles/76561198136257443#!/compare/1587600000/1588204800

https://backpack.tf/profiles/76561197961036580#!/compare/1586217600/1588464000

Sold for 12 keys

sale 20:

https://backpack.tf/profiles/76561198326254870#!/compare/1582502400/1583020800

https://backpack.tf/profiles/76561198197292179#!/compare/1582848000/1583107200

Bulk

sale 21:

https://backpack.tf/profiles/76561198197292179#!/compare/1587686400/1587772800

https://backpack.tf/profiles/76561198821294885#!/compare/1587686400/1587772800

Sold for 11 keys

sale 22:

https://backpack.tf/profiles/76561198821294885#!/compare/1587772800/1587859200

https://backpack.tf/profiles/76561198830386019#!/compare/1586736000/1587859200

Bulk

sale 23:

https://marketplace.tf/items/tf2/31010;5;u19

$23.95 / $1.72 = 13.92 keys <--- https://backpack.tf/item/7374517625

total sales @:

9, 11, 11, 11, 11, 11, 11, 12, 12, 14, 14 keys

buyers up to ~10 keys,

taking 11 - 14 keys.