First and third histories were already covered here: https://backpack.tf/suggestion/5aacca1144325a751d2a1ee5

I somehow missed the second one yesterday, which has these sales:

Bulk

https://backpack.tf/profiles/76561198011321852#!/compare/1521676800/1521763200

https://backpack.tf/profiles/76561198255399439#!/compare/1521590400/1521763200

GE Stalh (needs mini) + DBD Mancer (110) + KaW Slo-Poke (needs mini)

https://backpack.tf/profiles/76561198011321852#!/compare/1522368000/1522454400

https://backpack.tf/profiles/76561198139171368#!/compare/1522368000/1522454400

GE Big Elfin (needs mini) + Beams Billycock (43.5) + PKS Aussie Scattergun (~33) + Infernal Smoke RPS (needs mini) + Grail DFD (needs mini) + KS Batsaber (~10)

https://backpack.tf/profiles/76561198139171368#!/compare/1522627200/1522713600

https://backpack.tf/profiles/76561198104180955#!/compare/1517011200/1522713600

I will have a better look at this later, as it might need a range.

EDIT: Quick minis:

Only recent sale I can find for the GE Stahl is pretty much too low/unusable.

https://backpack.tf/profiles/76561198139850840#!/compare/1522368000/1522454400

https://backpack.tf/profiles/76561198139171368#!/compare/1522368000/1522454400

KaW Slo-Poke sold with ~4 keys in sweets for an Insomnia Spartan (30) here. ----- 26 keys total

https://backpack.tf/profiles/76561198188903238#!/compare/1523836800/1523923200

https://backpack.tf/profiles/76561198059805629#!/compare/1523836800/1523923200

So this sale should be above 230, but the Stahl is insanely outdated so who knows.

GE Big Elfin resold for a PE Trilby (open sugg at 47 ) + 6 keys ----- 53 keys

https://backpack.tf/profiles/76561198139171368#!/compare/1522627200/1522713600

https://backpack.tf/suggestion/5ad60ee244325a2ffb580ee4

https://imgur.com/a/WbrDDMb ----- currently on scrap.tf for ~36, not a month old yet.

Infernal Smoke RPS has an unsold at 19 and buyer at ~15, taking the median (17) just to get an idea of the sale.

https://imgur.com/a/WGUQ1gy

Grail DFD has recent sales at 8-9 on marketplace:

https://marketplace.tf/items/1119;5;u3003

https://imgur.com/a/EvHytZh ----- month unsold at 8, so forget about 9.

So even if we take a 36-53 range for the Elfin (which almost certainly will be too high), the Bonk Boy sale will end up at around ~155. So there's a high chance that 200 ends up being accurate or close enough as a median here, but wouldn't hurt to wait for the GE Stahl to resell and see if this can get a range.