https://marketplace.tf/items/tf2/597;14

https://backpack.tf/item/4298426300

https://imgur.com/a/0nxmmtG

$300, 160 key buyout

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https://backpack.tf/profiles/76561198038899317#!/compare/1601251200/1601337600

https://backpack.tf/profiles/76561198328282971#!/compare/1601164800/1601251200

https://backpack.tf/profiles/76561198969129810#!/compare/1601078400/1601251200

Things get weird, but there are two sales:

Confirmations by sellers in last suggestion https://backpack.tf/suggestion/5f5c655aba1cd15c975f250a

1st to 2nd compare:

Collector's Bubble Pipe + Orbiting Planets Pyromancer's Mask

for

Secret German Gonzila + Pro KS Cloud 9 Team Captain

This sale is quite bulky next to two sales for pure/marketplace, and a sale with already calculated values.

Not using this.

2nd to 3rd compare:

Collector's Bubble Pipe

for

Isotope Haunted Ghosts Shotgun FN + Double Spelled Aus Flame + 30 keys

Shotgun is 77.5 keys https://backpack.tf/suggestion/5f56c74b436323739d7f287b

Aus Flame sold later for 92 keys https://backpack.tf/profiles/76561198328282971#!/compare/1601769600/1601856000

30 keys is 30 keys https://marketplace.tf/items/tf2/5021;6

sale = 199.5 keys

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https://backpack.tf/profiles/76561198969129810#!/compare/1601856000/1601942400

https://backpack.tf/profiles/76561197991477148#!/compare/1601856000/1601942400

155 keys + 10 refined, confirmation by buyer

https://gyazo.com/e816e74e3ffec9b4bf7f04ac89626049

//

Sales

155

160

199.5

155-200