Wow, this is really outdated.

Sale 1

Sold with 6 keys for a Smoking Cloud Crasher (mini at 19). The Scattergun wasn't involved.

http://backpack.tf/profiles/76561198133892613#!/compare/1471910400/1472169600

http://www.tf2outpost.com/trade/28384727 ----- Legotonix appears to have brokered it with a B/O of 14 keys

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Mini for the Crasher: Sold for a SKS Aussie Minigun (~20 at the time)

http://backpack.tf/profiles/76561198126637589#!/compare/1468108800/1468195200

There is a Crasher seller at 19 keys for more than a week, so capping it at 19.

http://www.tf2outpost.com/trade/28437593

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=======> 19 - 6 = 13 keys

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Other sales involve Scrap.tf. It also appears to have been brokered by Legotonix.

Sellers

- No sellers at the time.

Summary

- Sale for 13.

Going with 13 keys. Criticism appreciated!