Sale 1:

https://backpack.tf/profiles/76561198363126934#!/compare/1544140800/1544745600

https://backpack.tf/profiles/76561198401130986#!/compare/1541116800/1545782400

SCM

Sale 2:

https://backpack.tf/profiles/76561198055969370#!/compare/1547769600/1547856000

https://backpack.tf/profiles/76561198066707447#!/compare/1547683200/1547856000

Sold with 0.5 keys in sweets for CTFL Mongolian

Mong Mini:

https://backpack.tf/suggestion/5c7b53e46780723dc1580e10

Suggestion for 8.5 keys

Total is 8 keys

Sale 3:

https://backpack.tf/profiles/76561198066707447#!/compare/1547856000/1547942400

https://backpack.tf/profiles/76561198024867201#!/compare/1547856000/1547942400

Sold for ~6 keys

Sale 4:

https://backpack.tf/profiles/76561198302828140#!/compare/1544313600/1546819200

https://backpack.tf/profiles/76561198100621079#!/compare/1534982400/1547856000

SCM

Sale 5:

https://backpack.tf/profiles/76561198801526711#!/compare/1544313600/1544745600

https://backpack.tf/profiles/76561198173176667#!/compare/1543622400/1548201600

Untrace

Sale 6:

https://backpack.tf/profiles/76561198363395191#!/compare/1548892800/1548979200

https://backpack.tf/profiles/76561198061634071#!/compare/1548979200/1549065600

Untrace

Sale 7:

https://backpack.tf/profiles/76561198061634071#!/compare/1549065600/1549152000

https://backpack.tf/profiles/76561198332839477#!/compare/1549065600/1549152000

Untrace

Sale 8:

https://backpack.tf/profiles/76561198210225228#!/compare/1548806400/1548979200

https://backpack.tf/profiles/76561198376993893#!/compare/1548892800/1549152000

SCM

Sale 9:

https://backpack.tf/profiles/76561198119130644#!/compare/1545523200/1545609600

https://backpack.tf/profiles/76561198096832120#!/compare/1539734400/1547424000

Untrace

Sale 10 - 12:

https://marketplace.tf/items/30919;5;u3008

$12.50 / $1.7 = 7.35 keys

$12.45 / $1.81 = 6.88 keys

$13.50 / $1.79 = 7.54 keys

Total sales @:

6, 6.88, 7.35, 7.54, 8 keys

Sellers down to 7 keys,

Bot.tf snapshots show its been up since Dec:

https://bot.tf/stats/listings/Y7JL91LM

Taking 6 - 7 keys