´Starstorm Slumber Brotherhood of Arms

Team 1 (iTrade)

Sales 1-2:

140 USD; 1 key = 1.96 --> 71.43 keys, rounded to 71

180 USD, 1 key =1.97 --> 91.37 keys, rounded to 91

https://marketplace.tf/items/30066;5;u110

Sale 3: Likely a Gift

https://backpack.tf/profiles/76561198200156035#!/compare/1528416000/1528848000

https://backpack.tf/profiles/76561198044766585#!/compare/1528502400/1528934400

Sale 4: Sold for Duped C9 Boa + 5 Pure

https://backpack.tf/profiles/76561198043766709#!/compare/1529971200/1531699200

https://backpack.tf/profiles/76561198245186588#!/compare/1525305600/1530403200

Excluding, Clean Sellers at 69 and 65 for almost a month ( https://imgur.com/a/aUV7piF ), overall this sale seems low )

Sale 5: Sold for 13 keys + Terror-Watt Crones Dome (67) --> 80 keys

https://backpack.tf/profiles/76561198042889054#!/compare/1526428800/1526515200

https://backpack.tf/profiles/76561198303667795#!/compare/1526169600/1526515200

Seller at 120 (matured), buyers at 43, 46. https://i.imgur.com/lDkDwH4.png

Sales at 71, 80, 91.

Suggesting range from 70 to 90 with a little bit of rounding.