Sale 1:

https://backpack.tf/profiles/76561198127508395#!/compare/1543363200/1543536000

https://backpack.tf/profiles/76561198176498187#!/compare/1543363200/1543536000

Sold for 8 keys?

Sale 2:

https://backpack.tf/profiles/76561198176498187#!/compare/1543363200/1543536000

https://backpack.tf/profiles/76561198048610662#!/compare/1543449600/1543536000

Sold for 11 keys?

Sale 3:

https://backpack.tf/profiles/76561198048610662#!/compare/1543449600/1543536000

https://backpack.tf/profiles/76561197979490192#!/compare/1543449600/1543536000

Sold for Searing Tippler + negligible sweets

Tippler Mini:

https://backpack.tf/suggestion/5c441dd244325a743a5cbc70

Suggestion for 14 keys

Sale 4:

https://backpack.tf/profiles/76561197979490192#!/compare/1543449600/1543536000

https://backpack.tf/profiles/76561198824203909#!/compare/1543536000/1546214400

Sold for P Fetti Base Metal + ~2 keys in sweets

Metal Mini:

https://backpack.tf/suggestion/5c441b61cf6c75278c12ca6f

Suggestion for 11 keys

Total is 13 keys

Seller for 13 keys, unsold for 2 months,

Buyers up to 9 keys,

11 is a bit out of place, some keys don't match exactly.

Taking 13 flat.