Sale 1 and 2. https://marketplace.tf/shopitem/m3-m3/31029;5;u57

Sold twice for $16/$1.176 and $16/$1.77

~ 9 pure x2

Sale 3. https://backpack.tf/profiles/76561198846881416#!/compare/1546646400/1546732800

Not entirely sure, other side shows nothing

Sale 4. https://backpack.tf/profiles/76561198048025936#!/compare/1546473600/1546646400\

Not sure either

Sale 5. https://backpack.tf/profiles/76561198293306227#!/compare/1548979200/1549065600 History doesn't match

https://backpack.tf/profiles/76561198048025936#!/compare/1549065600/1549152000 Other side is weird too

Sale 6. https://backpack.tf/profiles/76561198248746364#!/compare/1549152000/1549238400

HG inspectuer (18)

= 18 keys

Sale 7. https://backpack.tf/profiles/76561198248746364#!/compare/1550361600/1550448000

28 pure

= 28 keys

Sale 8. https://backpack.tf/profiles/76561198076144879#!/compare/1550361600/1550448000

https://backpack.tf/profiles/76561198105944338#!/compare/1550448000/1550966400 Prob cash?

Sale 9. https://backpack.tf/profiles/76561198036591750#!/compare/1550275200/1550534400 https://imgur.com/a/EDvyXSL

Sold with 2 keys + ~1 key metal for a KaW Cannonball (18)

= 15 keys

Sale 10. https://backpack.tf/profiles/76561198135492876#!/compare/1551312000/1551398400

B. Storm Beanie (11)

= 11 keys

Sales, 9, 9, 18, 28, 15, 11

Excluding both 9 and 28 as low/high outliers

Large range but rolling with 11-18!

Cannonball mini https://marketplace.tf/shopitem/meimsgaf/817;5;u56

~ 18 keys

Inspectuer mini

https://backpack.tf/profiles/76561198871655870#!/compare/1549238400/1549324800

= 18 keys https://backpack.tf/item/7063740192 History matches

Beanie mini https://backpack.tf/profiles/76561198171107913#!/compare/1551139200/1551225600

11 pure