Sale 1:

https://backpack.tf/profiles/76561198112956569#!/compare/1565827200/1570492800

https://backpack.tf/profiles/76561198831841375#!/compare/1565913600/1566086400

Can trace a taunt

Sale 2:

https://backpack.tf/profiles/76561198831841375#!/compare/1566172800/1566432000

https://backpack.tf/profiles/76561198120952280#!/compare/1566345600/1566432000

Sold for 6 keys

Sale 3 - 7:

https://marketplace.tf/items/tf2/481;5;u32

$16.59 / $1.82 = 9.12 keys

$16.6 / $1.80 = 9.22 keys

$15.64 / $1.80 = 8.69 keys

$14.59 / $1.82 = 8.02 keys

$14 / $1.79 = 7.82 keys

Sale 4:

https://backpack.tf/profiles/76561198276804935#!/compare/1569715200/1569801600

https://backpack.tf/profiles/76561198254822867#!/compare/1569715200/1569801600

Sold with ~1 key in sweets for TW Tit Tyro

Tyro Mini:

https://backpack.tf/suggestion/5d9ff0996780724db10ca3b2

Suggestion for 8 keys

Total is 7 keys

Sale 5:

https://backpack.tf/item/945556980

nothing else except Sale 4 that i can trace in this history, other than gambling / untrace / bulk

Total sales @:

6, 7, 8, 8, 8.5, 9, 9.5 keys

buyers up to ~5.5 keys,

seller for 7 keys, unsold for 10 days,

calling 6 low, 9.5 high.

gonna hesitantly take 7 - 9 keys.