Sale 1: QS for 15 keys

https://backpack.tf/profiles/76561198158879140#!/compare/1494633600/1494806400

Sale 2: QS For 15 keys and 14 refined (Rounded to 15)

https://backpack.tf/profiles/76561198246096512#!/compare/1494806400/1494892800

Sale 3: Sold for 17 Keys, 11 of them were used to buy a bubbling master's yellow belt, as the key history matches

https://backpack.tf/profiles/76561198138667312#!/compare/1499040000/1499126400

https://backpack.tf/profiles/76561198296062531#!/compare/1499040000/1499126400

https://backpack.tf/profiles/76561198040675606#!/compare/1499040000/1499126400

Sale 4: 1:1 with a Team Shine max that was Sold for 17 keys 0.55 Refined? (Rounded to 17)

https://backpack.tf/profiles/76561198279527155#!/compare/1499299200/1499385600

https://backpack.tf/profiles/76561198138667312#!/compare/1499299200/1499385600

Sale 5: Sold for a Memory Leak Tam O' Shanter (17 Keys indate + 1 key + 20 refined in items) (Rounded to 18)

https://backpack.tf/profiles/76561198072960996#!/compare/1494374400/1494720000

https://backpack.tf/profiles/76561198100017156#!/compare/1494201600/1494547200

Sale 6: Bulk

https://backpack.tf/profiles/76561198100017156#!/compare/1498780800/1498953600

https://backpack.tf/profiles/76561198316071886#!/compare/1498780800/1498953600

Sale 7: Bulk

https://backpack.tf/profiles/76561198173071353#!/compare/1495152000/1495238400

Sale 8: Bought for 16 Keys

https://backpack.tf/profiles/76561198002757046#!/compare/1495324800/1495411200

https://backpack.tf/profiles/76561198112510439#!/compare/1495324800/1495411200

Sale 9: Another quicksell at 15

https://backpack.tf/profiles/76561198112510439#!/compare/1496793600/1499472000

Sale 10: Bulk

https://backpack.tf/profiles/76561198008073880#!/compare/1493510400/1493596800

https://backpack.tf/profiles/76561198013218558#!/compare/1493424000/1493596800

Total Sales:

15 (x3) Quick Sells

16

17 (x2)

18

Unsolds:

20 (5 Months)

18 (2 Months)

16 (15 Days)

15.9 (11 Days)

15.87 (9 Days)

Conclusion: Well seeing the how the unsolds have been around for quite a while, this unusual definitely needs a price decrease, with 15 keys being a QS I'm going to take the 16-18 Key range.

Also forgot to add in this other sale on Marketplace.tf

Sold for $36 Seeing as how the Keys are around $2 I'm just going to round it up to 18 keys which also supports the range

https://marketplace.tf/items/337;5;u34

https://backpack.tf/profiles/76561198072960996#!/compare/1493942400/1494115200

https://backpack.tf/item/4622035364