Sale 1:

https://backpack.tf/profiles/76561198132150538#!/compare/1564704000/1564790400

https://backpack.tf/profiles/76561198188187390#!/compare/1564012800/1564790400

bulky...

sale 2:

https://backpack.tf/profiles/76561198090648647#!/compare/1565913600/1566259200

https://backpack.tf/profiles/76561198192602363#!/compare/1565827200/1565913600

Bulk / Untrace

Sale 3:

https://backpack.tf/profiles/76561198971126353#!/compare/1566086400/1566259200

https://backpack.tf/profiles/76561198338864471#!/compare/1564790400/1566086400

Sold with negligible sweets for DBD Buckaroo

Buckaroo Mini:

https://backpack.tf/suggestion/5d7f16c167807257ba7c7853

Suggestion for 17 keys

Sale 4:

https://backpack.tf/profiles/76561197999021564#!/compare/1563667200/1564790400

https://backpack.tf/profiles/76561198092240547#!/compare/1565740800/1566345600

SCM

Sale 5:

https://backpack.tf/profiles/76561198254802111#!/compare/1568160000/1568419200

https://backpack.tf/profiles/76561198006544512#!/compare/1568332800/1568419200

Sold for ~12 keys

Sale 6:

https://backpack.tf/profiles/76561198070769790#!/compare/1562284800/1562371200

https://backpack.tf/profiles/76561198116182688#!/compare/1562284800/1562371200

Sold with ~5 keys in sweets for Max Head(22)

Total is 17 keys

Sale 7:

https://backpack.tf/profiles/76561198116182688#!/compare/1562284800/1562371200

https://backpack.tf/profiles/76561198044669932#!/compare/1562198400/1562371200

Sold with 3 keys for Aussie Sniper(~25)

Total is 22 keys

https://bot.tf/stats/listings/M0RK67V4

B/O of 20 keys, capping

Sale 8:

https://backpack.tf/profiles/76561198100303439#!/compare/1566086400/1566345600

https://backpack.tf/profiles/76561198337734785#!/compare/1566259200/1566345600

Sold for ~8.5 keys

Sale 9:

https://backpack.tf/profiles/76561198337734785#!/compare/1566518400/1566604800

https://backpack.tf/profiles/76561198183545511#!/compare/1566518400/1566604800

Untrace

Sale 10:

https://backpack.tf/profiles/76561198183545511#!/compare/1567123200/1567900800

https://backpack.tf/profiles/76561198337734785#!/compare/1567814400/1567900800

Sold for 12 keys

Sale 11:

https://backpack.tf/profiles/76561198126752300#!/compare/1566172800/1566259200

https://backpack.tf/profiles/76561198105071091#!/compare/1566086400/1566172800

Sold for 12 keys

Sale 12:

https://backpack.tf/profiles/76561198020869765#!/compare/1566950400/1567209600

https://backpack.tf/profiles/76561198057293920#!/compare/1563408000/1567209600

Sold for Orb Motif(14) + ~9 keys in sweets (big kill sold for keys)

Total is 23 keys

https://bot.tf/stats/listings/M0DX0572

B/O of 19 keys, capping

Sale 13:

https://backpack.tf/profiles/76561198057293920#!/compare/1563408000/1567209600

https://backpack.tf/profiles/76561198354979270#!/compare/1567123200/1567209600

Sold with 5 keys for Stormy Eyewear

eyewear Mini:

https://backpack.tf/suggestion/5d7f175767807257ba7c78bc

Suggestion for 17.5 keys

Total is 12.5 keys

Sale 14:

https://backpack.tf/profiles/76561198354979270#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198090102432#!/compare/1565222400/1567987200

Sold for 14 keys

Sale 15:

https://backpack.tf/profiles/76561198124120258#!/compare/1566172800/1568505600

https://backpack.tf/profiles/76561198337734785#!/compare/1566172800/1566432000

QS

sale 16:

https://backpack.tf/profiles/76561198337734785#!/compare/1566777600/1566864000

https://backpack.tf/profiles/76561198343291394#!/compare/1566864000/1566950400

https://backpack.tf/profiles/76561198337734785#!/compare/1566950400/1567036800

Tradeback

Sale 17:

https://backpack.tf/profiles/76561198337734785#!/compare/1567036800/1567123200

https://backpack.tf/profiles/76561198042924359#!/compare/1567036800/1567123200

Keys

Sale 18:

https://backpack.tf/profiles/76561198042924359#!/compare/1567036800/1567123200

https://backpack.tf/profiles/76561198042924359#!/compare/1567036800/1567123200

Keys

sale 19:

https://backpack.tf/profiles/76561198042924359#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198251978870#!/compare/1567036800/1567123200

Sold for 13 keys

Sale 20:

https://backpack.tf/profiles/76561198251978870#!/compare/1567209600/1567382400

https://backpack.tf/profiles/76561198058883209#!/compare/1567123200/1567382400

Can trace 3 keys...

sale 21:

https://backpack.tf/profiles/76561198058883209#!/compare/1567123200/1567382400

https://backpack.tf/profiles/76561198822007289#!/compare/1567296000/1567382400

Sold for ~14 keys

Sale 22:

https://backpack.tf/profiles/76561198822007289#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198085187877#!/compare/1567468800/1567555200

Sold with 4 keys for DBD Slouch

use there

Sale 23:

https://backpack.tf/profiles/76561198085187877#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198064589227#!/compare/1567382400/1567555200

Sold for 13 keys

Sale 24, 25:

https://marketplace.tf/items/tf2/626;5;u61

$41.99 / $1.81 = 23.20 keys <-- https://backpack.tf/item/2382084891| https://bot.tf/stats/listings/4JGRZ0L3 B/O of 25 keys

$41.99 / $1.80 = 23.33 keys

Total sales @:

8.5, 12, 12, 12, 12.5, 13, 13, 13, 14, 14, 17, 17, 19, 20, 23, 23 keys

2 new sellers for 14 keys,

one at 15 keys,

aging seller at 20 keys,

buyers up to 12 keys, only one...

gonna say it's better to take 12 - 20 keys.