Party General

https://backpack.tf/item/2515303911

Sale 1) Sold + 1 Key for a Smoking Lucky Shot + Steaming Brigade Helm (12.5 Keys)

https://backpack.tf/profiles/76561198301663376#!/compare/1508976000/1509148800

Fits in the range.

Sale 2) Sold + 1 Key for a Professional Killstreak Australium Knife (~25 Keys)

https://backpack.tf/profiles/76561198213910941#!/compare/1509408000/1509494400

25 - 1 = 24 Keys

Sale 3) Sold for 29 Keys

https://backpack.tf/profiles/76561198259308711#!/compare/1509926400/1510012800

https://backpack.tf/item/2198848121

Sale 4) Sold for 25 Keys

https://backpack.tf/profiles/76561198002757046#!/compare/1507334400/1507420800 - Seller's Backpack

https://backpack.tf/profiles/76561198168597067#!/compare/1507334400/1507420800 - Buyer's Backpack

Sale 5) Sold for 30 Keys

https://backpack.tf/profiles/76561198168597067#!/compare/1507593600/1507766400

Sale 6) Bulk sale for a Purple Energy Noble Amassment of Hats

https://backpack.tf/profiles/76561198354616062#!/compare/1507939200/1508025600

Sale 7) Sold + Circling Peace Sign Prancer's Pride for a Silver Cyclone Victory Lap

https://backpack.tf/profiles/76561198344429943#!/compare/1512691200/1512777600

This sale would better be used to price the Victory Lap.

https://imgur.com/a/nZC37 - A 19 Day Seller and a 2 Month Seller at 32 Keys supports a drop.