Mkay this might be tricky

Proof:

http://puu.sh/AaHZe/dff94f0e11.png ~ sold for 13 keys in items + 3 keys + a collectors pro ks third degree https://backpack.tf/item/4519702670 ~ 7.2

~ 23.2

Only other sale is a low SCM sale https://puu.sh/AaI3n/43fa79090e.png (30 USD ~ 12 keys)

Breakdown of items:

Taunt: The Bunnyhopper ~ 1.45 keys

Taunt: The Skating Scorcher ~ 1.25 keys

Taunt: Surgeon's Squeezebox ~ 1.35 keys

Strange Flak Jack ~ 0.6 keys

Taunt: The Dueling Banjo ~ 1.43 keys

El Caballero ~ 0.26 keys

Strange Private eye ~ 0.2 keys

Strange Dr. Whoa ~ 0.4 keys

Strange Santarchimedes ~ 0.32

Strange Champ Stamp ~ 0.54 keys

Strange D-eye-monds ~ 0.64 keys

Taunt: Didgeridrongo ~ 0.85 keys

Taunt: Luxury Lounge ~ 1 key

Strange Outback Intellectual ~ 0.58 keys

Strange Double Dynamite ~ 0.95 keys

Taunt: The Table Tantrum ~ 1.1

~ 12.92 in items