Wouldn't this melt?

https://backpack.tf/item/3983123731

Sale 1) Sold for a Steaming Ye Olde Baker Boy (13 Keys) + Circling Peace Sign L'Inspecteur (12.5 Keys) + Smoking Flipped Trilby (11.5 Keys)

https://backpack.tf/profiles/76561198123899074#!/compare/1509667200/1509753600

13 + 12.5 + 11.5 = 37 Keys

Baker Mini

https://backpack.tf/suggestion/5a2c603e44325a64552c58f3 - 13 Keys

L'Inspecteur Mini

https://backpack.tf/suggestion/5a2c4f1344325a632623463a - 12.5 Keys

Trilby Mini

https://backpack.tf/suggestion/5a2c550944325a52c3430249 - 11.5 Keys

Sale 2) Sold for a '72 Skullcracker

https://backpack.tf/profiles/76561198269650829#!/compare/1509926400/1510012800

This sale would better be used to price the Skullcracker

Sale 3) Sold for an Anti-Freeze Larrikin Robin

https://backpack.tf/profiles/76561198066207210#!/compare/1510358400/1510444800

This sale would better be used to price the Larrikin, since it has no price.

Sale 4) Sold for 26 Keys to a Quickbuyer

https://backpack.tf/profiles/76561198048008254#!/compare/1510444800/1510531200 - Buyer's Backpack

Excluding

Sale 5) Sold for 28 Keys

https://backpack.tf/profiles/76561198048008254#!/compare/1512518400/1512604800

https://imgur.com/a/yyFwX - 3 Day Seller at 33 Keys

Calling 28 Keys low, but it supports a drop.