1 of 2 hat, recently bought, given how rare and old the previous suggestion was, thought I would try to update it.

Traded for 150 keys + 25 Unlocked Winter 2016 Cosmetic Cases on November 10th 2018.

1.73 per key on marketplace.tf.

25 Winter 2016 Cases at $2.48/case on Marketplace.tf = $62 = 35.8 keys rounded up to 36 keys.

150+36 keys = 186 keys

Screenshot of Trade History:

https://imgur.com/a/KqYeSUw

I am also a collector, don't plan on selling, haven't sold in last 2 months, won't sell in next 3 months - 3 years either, so this will likely be the only sale in the next year.

The other hat of this 1 of 2 hasn't sold in 4 years since 2014 December.

https://backpack.tf/item/1238747004

"https://backpack.tf/profiles/76561198055622215#!/compare/1541721600/1541808000 - this went 1:1 for a beams ballcap which is updated at 140

https://backpack.tf/profiles/76561198055622215#!/compare/1541635200/1541721600 - prior to that it sold for some outdated hats that are massively inflated

And prior to that it was in scrap.tf bot.

A range of 140-186 is will work here. Please resuggest." ~Polar

As Per Polar in last suggestion.