Sale 1:

https://backpack.tf/item/3888699199

https://backpack.tf/profiles/76561198192687990#!/compare/1581120000/1581206400

not unusual till this point.

sale 2:

https://backpack.tf/profiles/76561198192687990#!/compare/1581206400/1581292800

https://backpack.tf/profiles/76561198888067890#!/compare/1582934400/1583020800

Untrace

sale 3:

https://backpack.tf/profiles/76561198888067890#!/compare/1582934400/1583020800

https://backpack.tf/profiles/76561198432085244#!/compare/1583020800/1583107200

untrace

sale 4:

https://backpack.tf/profiles/76561198822493785#!/compare/1581984000/1583366400

https://backpack.tf/profiles/76561198446300079#!/compare/1583193600/1583366400

Sold for 2 keys

sale 5:

https://backpack.tf/profiles/76561198446300079#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198204863571#!/compare/1583366400/1583452800

Sold for 2.75 keys

sale 6:

https://backpack.tf/profiles/76561198204863571#!/compare/1583366400/1583452800

https://backpack.tf/profiles/76561198024694313#!/compare/1583280000/1583452800

Transfer

sale 7:

https://backpack.tf/profiles/76561198024694313#!/compare/1583452800/1583712000

https://backpack.tf/profiles/76561198999915015#!/compare/1583884800/1584489600

Untrace / SCM?

sale 8:

https://backpack.tf/profiles/76561198999915015#!/compare/1583884800/1588204800

https://backpack.tf/profiles/76561198136419579#!/compare/1583971200/1584403200

Untrace

sale 9:

https://backpack.tf/profiles/76561198040372477#!/compare/1582675200/1582761600

https://backpack.tf/profiles/76561198315210497#!/compare/1582675200/1582761600

Sold for ~2.75 keys

sale 10:

https://backpack.tf/profiles/76561198315210497#!/compare/1582848000/1582934400

https://backpack.tf/profiles/76561198026462419#!/compare/1582761600/1582934400

Bulk

sale 11:

https://backpack.tf/profiles/76561198878866368#!/compare/1580256000/1581033600

https://backpack.tf/profiles/76561198850274253#!/compare/1580947200/1581033600

Bulk QS

sale 12:

https://backpack.tf/profiles/76561198154438797#!/compare/1581292800/1581465600

https://backpack.tf/profiles/76561198113889163#!/compare/1581292800/1581465600

Sold for spells

sale 13:

https://backpack.tf/profiles/76561198113889163#!/compare/1581465600/1581552000

https://backpack.tf/profiles/76561198060582831#!/compare/1581552000/1581638400

sold for spell

sale 14:

https://backpack.tf/profiles/76561198060582831#!/compare/1581724800/1581811200

https://backpack.tf/profiles/76561198080355107#!/compare/1581638400/1581724800

sold with 0.04 keys in sweets for Grail Breakdance

Breakdance Mini:

https://backpack.tf/suggestion/5eaa67c116f5786adf224714

Suggestion for 3.96 keys

Sale 15:

https://backpack.tf/profiles/76561198080355107#!/compare/1581897600/1581984000

https://backpack.tf/profiles/76561198978621382#!/compare/1581984000/1582070400

Bulk

sale 16:

https://backpack.tf/profiles/76561198978621382#!/compare/1582588800/1583020800

https://backpack.tf/profiles/76561198134238543#!/compare/1582934400/1583020800

Bulk

sale 17:

https://backpack.tf/profiles/76561198134238543#!/compare/1582934400/1583020800

https://backpack.tf/profiles/76561198197802471#!/compare/1581984000/1583020800

https://backpack.tf/profiles/76561198005032783#!/compare/1582934400/1583020800

Untrace

sale 18, 19:

https://marketplace.tf/items/tf2/1108;5;u3010

$5.56 / $1.72 = 3.23 keys

$6.7 / $1.77 = 3.79 keys

Total sales @:

2, 2.75, 2.75, 3.25, 3.80, 3.95 keys

buyers up to ~2.71 keys,

https://bot.tf/stats/listings/4EPP0GLQ

Seller at ~3.55 keys for ~1 month,

taking 2.75 - 3.80 keys, conserving as cloe to seller as possible.