2 sales

1) Scorching Flames Defiant Spartan (84) + Smoking Whoopee Cap (13) + Orbiting Planets Bubble Pipe (19) + '72 The Proletariat Posedown (5) + 6 keys + 2 keys in items

https://backpack.tf/profiles/76561198081943134#!/compare/1552608000/1552780800

https://backpack.tf/profiles/76561198062561069#!/compare/1552694400/1552780800

Spartan sold for $150 on March 4th, keys were $1.79

https://marketplace.tf/items/340;5;u14

150/1.79 ≈ 84 keys

Whoopee sold for $22.5 on January 22nd, keys were $1.75

https://marketplace.tf/items/174;5;u35

22.5/1.75 ≈ 13 keys

Pipe has a 19 key seller for 2+ months

https://backpack.tf/stats/Unusual/Bubble%20Pipe/Tradable/Craftable/32

https://imgur.com/iqAJsxC

Posedown

https://backpack.tf/stats/Unusual/Taunt%3A%20The%20Proletariat%20Posedown/Tradable/Craftable/3004

84 + 13 + 19 + 5 + 6 + 2 = 129

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https://marketplace.tf/items/30553;5;u17

2) $216 on March 9th, keys were $1.8

216/1.8 = 120 keys

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Total: 120, 129. Rounded to 120-130

If you will find other sales, you're welcome to report them.

New sale: Scrap sale

https://backpack.tf/profiles/76561198130834456#!/compare/1553212800/1553299200

Resuggesting due to new valuable sale.