Mini.

Sale 1: https://backpack.tf/profiles/76561198089292580#!/compare/1545177600/1545350400

https://backpack.tf/profiles/76561198114402400#!/compare/1545264000/1545350400

Sold with Cloud 9 Towering Pillar of Hats + 5 keys for a Strange Eldritch Flame Duck Billed Hatypus, use there.

Sale 2: https://backpack.tf/profiles/76561198182213262#!/compare/1541116800/1541203200 - ?

Sale 3: https://backpack.tf/profiles/76561198182213262#!/compare/1541635200/1541721600

Sold for Demonflame Powdered Practitioner + The Eldritch Opening Hephaistos' Handcraft, use there.

Sale 4: https://backpack.tf/profiles/76561198046178525#!/compare/1542153600/1542240000

https://backpack.tf/profiles/76561198125791160#!/compare/1542067200/1542153600

?

Sale 5: https://backpack.tf/profiles/76561198072439676#!/compare/1547164800/1547251200

https://backpack.tf/profiles/76561198125791160#!/compare/1547078400/1547164800

No sales for Valley.

Sale 6: https://backpack.tf/profiles/76561198047941585#!/compare/1542240000/1542326400

https://backpack.tf/profiles/76561198031126990#!/compare/1542240000/1542326400

Sold for a Miami Nights Crone's Dome (111 keys) + a The Eldritch Opening Highway (80 keys) + 3 keys.

111 + 80 + 3 = 194

Mini for Crones: https://backpack.tf/suggestion/5c4796e444325a355f69f99d

Mini for Highway: https://marketplace.tf/items/31010;5;u115

Sale 1: 175/1.76 = ~99

Sale 2: 140/1.72 = ~81

Sale 3 and 4: 135/1.73 = ~78

Classies: https://i.imgur.com/qGc4kJr.png - taking 78-81 (~80)

Sale 7: https://backpack.tf/profiles/76561197970361626#!/compare/1545696000/1545955200 - 168 pure.

Sale 8: https://backpack.tf/profiles/76561198122604075#!/compare/1545955200/1546041600

https://backpack.tf/profiles/76561198125071052#!/compare/1545955200/1546041600

Sold with a Strange Professional Killstreak Australium Sniper Rifle (36 keys) for a Nebula Universal Translator (185 keys) + 6 pure

(185 + 6) - 36 = 155, low

Sale 9: https://backpack.tf/profiles/76561198204505424#!/compare/1542499200/1542931200

https://backpack.tf/profiles/76561198114402400#!/compare/1542844800/1542931200

Sold for a Nebula Universal Translator (185 keys) + 5 pure.

185 + 5 = 190

Sale 10: https://marketplace.tf/items/30647;5;u99 - 359/1.76 = ~204

New sales:

https://backpack.tf/profiles/76561198163499271#!/compare/1549843200/1550361600 - 168 pure.

https://backpack.tf/profiles/76561198125791160#!/compare/1551398400/1551484800

https://backpack.tf/profiles/76561197970770340#!/compare/1551398400/1551484800

170 pure.

There were sellers at 180 at some point: https://gyazo.com/f27bc0e4e5b873b4056f217aae9f0547

Sales: 194, 190 and 204. Classies: https://i.imgur.com/pmgmV8p.png. Since the Crones also has a seller at 100: https://i.imgur.com/LkAFmzX.png ill go diregard the higher sales. 170 should prolly be included in the range. 170-190.