The ghost of Prince Tavish is lurking around.

New price: 24-27 keys

Proof:

Sale #1 (2 months)= 27 keys

https://backpack.tf/profiles/76561197978210095#!/compare/1522972800/1523059200

Sold for 27 keys.

Sale #2 (1 month)= 24 keys

https://backpack.tf/profiles/76561198059884805#!/compare/1526083200/1526169600

Sold for flaming lantern stove pipe (23) + 1 key = 24. Mini below.

Sale #3 (3 weeks)= 37 keys.

https://marketplace.tf/items/342;5;u8

Sold for 73.40$. Keys were 1.98$. 73.40 / 1.98 = ~37.

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Minis

Flaming lantern stove pipe:

https://backpack.tf/suggestion/5b1b488444325a239c7a78d4

Going with 23 keys.

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SUMMARY

Sales:

24

27

37

37 is high.

Going with 24-27 keys.

Feel free to add proof to support or counter my new price.