MP sales:

https://marketplace.tf/items/tf2/760;5;u59

April 4: 19.44 / 1.72 = 11.3

April 6: 19.25 / 1.69 = 11.4

Other trades:

1. https://backpack.tf/item/7957624020

https://backpack.tf/profiles/76561198196947639#!/compare/1581465600/1581897600

Unusable

2. https://backpack.tf/item/7957624020

https://backpack.tf/profiles/76561198796395930#!/compare/1581724800/1581811200

Sold for 11 keys

3. https://backpack.tf/item/7957624020

https://backpack.tf/profiles/76561198199465911#!/compare/1581984000/1582070400

Sold for a Stormy Storm Helmet Without a Home (10) + 2 keys + Strange Head of the Dead (~4 keys) High outlier

Suggestion on the helmet: https://backpack.tf/suggestion/5e8d893e41c5b94594698204

4. https://backpack.tf/item/7957624020

https://backpack.tf/profiles/76561198208797744#!/compare/1582070400/1582761600

Unusable

5. https://backpack.tf/item/7957624020

https://backpack.tf/profiles/76561198087314132#!/compare/1582156800/1582243200

Sold for 11 keys

6. https://backpack.tf/item/7956144831

https://backpack.tf/profiles/76561198124217225#!/compare/1581638400/1584835200

Unusable

7. https://backpack.tf/item/7956144831

https://backpack.tf/profiles/76561198262810079#!/compare/1584748800/1584835200

Sold for 9 keys + 23 ref= 9.4 Low outlier seeing all other sales

Taking 11 keys