Sale 1:

https://backpack.tf/profiles/76561198332626578#!/compare/1581984000/1584576000

https://backpack.tf/profiles/76561198021146161#!/compare/1584489600/1584576000

https://backpack.tf/profiles/76561198203896233#!/compare/1584576000/1584662400

https://backpack.tf/profiles/76561198061353482#!/compare/1584576000/1584662400

https://backpack.tf/profiles/76561198203896233#!/compare/1584576000/1584662400

https://backpack.tf/profiles/76561198102996762#!/compare/1584403200/1584748800

https://backpack.tf/profiles/76561198064065041#!/compare/1584057600/1584748800

https://backpack.tf/profiles/76561198061353482#!/compare/1584662400/1584748800

https://backpack.tf/profiles/76561198970987097#!/compare/1584662400/1584748800

https://backpack.tf/profiles/76561198836483281#!/compare/1584576000/1584748800

https://backpack.tf/profiles/76561198970987097#!/compare/1584662400/1584748800

https://backpack.tf/profiles/76561198395508770#!/compare/1555286400/1584921600

https://backpack.tf/profiles/76561198177719569#!/compare/1584835200/1584921600

https://backpack.tf/profiles/76561198322560312#!/compare/1584921600/1585008000

https://backpack.tf/profiles/76561198177719569#!/compare/1585008000/1585094400

Untrace / bulk / Gambling

sale 2:

https://backpack.tf/profiles/76561199017904814#!/compare/1583107200/1583193600

https://backpack.tf/profiles/76561198950621219#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198037674114#!/compare/1583884800/1583107200

https://backpack.tf/profiles/76561198020673987#!/compare/1586131200/1586217600

https://backpack.tf/profiles/76561198850274253#!/compare/1586476800/1586563200

Untrace / QS / Bulk

sale 3:

https://backpack.tf/profiles/76561198177719569#!/compare/1585008000/1585094400

https://backpack.tf/profiles/76561198322560312#!/compare/1585008000/1585094400

https://backpack.tf/profiles/76561198177719569#!/compare/1585008000/1585094400

https://backpack.tf/profiles/76561198037674114#!/compare/1583884800/1585094400

https://backpack.tf/profiles/76561198020673987#!/compare/1587081600/1587254400

https://backpack.tf/profiles/76561198850274253#!/compare/1587340800/1587427200

untrace / Bulk / QS

sale 4:

https://backpack.tf/profiles/76561198450068522#!/compare/1582761600/1583452800

https://backpack.tf/profiles/76561198151244565#!/compare/1583971200/1584316800

SCM

Sale 5:

https://backpack.tf/profiles/76561198151244565#!/compare/1585008000/1585180800

https://backpack.tf/profiles/76561198216561389#!/compare/1585094400/1585180800

Sold for 12 keys, likely more.

sale 6:

https://backpack.tf/profiles/76561198216561389#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198254899927#!/compare/1585094400/1585180800

Sold for CTFL Billy + 6 keys

use there

Sale 7:

https://backpack.tf/profiles/76561198254899927#!/compare/1585267200/1585353600

https://backpack.tf/profiles/76561198144472459#!/compare/1585353600/1585180800

Sold for Lantern Country

use there

sale 8:

https://backpack.tf/profiles/76561198144472459#!/compare/1585526400/1585612800

https://backpack.tf/profiles/76561198211445756#!/compare/1585526400/1585612800

Sold for ~13 keys, likely more...

Sale 9:

https://backpack.tf/profiles/76561198211445756#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198272707822#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198351299890#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198192247209#!/compare/1585612800/1585699200

Untrace

sale 10:

https://backpack.tf/profiles/76561198192247209#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198216561389#!/compare/1585612800/1585699200

Sold for HG Tank(14.5)

sale 11:

https://backpack.tf/profiles/76561198216561389#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198025868445#!/compare/1585699200/1585872000

Sold for Bubbling Falkirk + 5 keys

use there

sale 12:

https://backpack.tf/profiles/76561198025868445#!/compare/1585872000/1586995200

https://backpack.tf/profiles/76561198275012706#!/compare/1585785600/1585872000

Bulk

sale 13:

https://backpack.tf/profiles/76561198275012706#!/compare/1585872000/1585958400

https://backpack.tf/profiles/76561198381033764#!/compare/1585872000/1585958400

Sold for OF Drill + ~1 keys in sweets

use there

sale 14:

https://backpack.tf/profiles/76561198381033764#!/compare/1586476800/1586563200

https://backpack.tf/profiles/76561198363395191#!/compare/1586390400/1586476800

QS

sale 15:

https://backpack.tf/profiles/76561198363395191#!/compare/1586476800/1586563200

https://backpack.tf/profiles/76561198112550567#!/compare/1589414400/1589673600

UIntrace

sale 16:

https://backpack.tf/profiles/76561198080179568#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198281630040#!/compare/1583020800/1583107200

Sold for keys, at least 14.

Sale 17:

https://backpack.tf/profiles/76561198281630040#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198058799344#!/compare/1582934400/1583107200

Bulk

sale 18:

https://backpack.tf/profiles/76561198058799344#!/compare/1583107200/1583625600

https://backpack.tf/profiles/76561198965747659#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198047863952#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198131684589#!/compare/1581724800/1583280000

Untrace

Sale 19:

https://backpack.tf/profiles/76561198131684589#!/compare/1583280000/1586131200

https://backpack.tf/profiles/76561198021638969#!/compare/1588723200/1589673600

https://backpack.tf/profiles/76561198355796365#!/compare/1589587200/1589673600

Untrace / QS

sale 20:

https://backpack.tf/profiles/76561198298998486#!/compare/1584921600/1585094400

https://backpack.tf/profiles/76561198079358892#!/compare/1584921600/1585008000

https://backpack.tf/profiles/76561198085304366#!/compare/1584835200/1585008000

https://backpack.tf/profiles/76561198037674114#!/compare/1583884800/1585094400

https://backpack.tf/profiles/76561198020673987#!/compare/1587254400/1587081600

https://backpack.tf/profiles/76561198850274253#!/compare/1587686400/1587772800

Untrace / QS

sale 21:

https://backpack.tf/profiles/76561198097271466#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561198281630040#!/compare/1583884800/1583971200

Sold for 16 keys

sale 22:

https://backpack.tf/profiles/76561198215761075#!/compare/1586995200/1587427200

https://backpack.tf/profiles/76561198869390792#!/compare/1586217600/1586995200

https://backpack.tf/profiles/76561198179253523#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198108020681#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198062153114#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198108020681#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198179253523#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198273675032#!/compare/1586995200/1587081600

untrace

Sale 23:

https://backpack.tf/profiles/76561198273675032#!/compare/1587168000/1587254400

https://backpack.tf/profiles/76561198337734785#!/compare/1587168000/1587254400

QS

sale 24:

https://backpack.tf/profiles/76561198342161127#!/compare/1584057600/1584144000

https://backpack.tf/profiles/76561198378908270#!/compare/1583280000/1584144000

Sold for 20 keys

sale 25:

https://marketplace.tf/items/tf2/30404;5;u61

$29.5 / $1.77 = 16.67 keys

$29.5 / $1.77 = 16.67 keys <--- https://backpack.tf/item/7957222412

$25 / $1.89 = 13.22 keys

Total sales @:

13, 15, 16, 17, 17, 20 keys

buyers up to ~15 keys,

seller at ~16 keys,

calling 15 low,

20 high,

taking 16 - 17 keys.