Here's one. [url]http://www.tf2outpost.com/backpack/76561198058085141[/url] It has taken offers but it hasn't sold in a while. There is only one other so this suggestion is based entirely on its recent trades.

I just sold it. He offered me on the TF2-Trader server. [url]http://imgur.com/mk1r19E[/url] [url]http://imgur.com/fCWvMRD[/url] [url]http://imgur.com/iIBNRfm[/url] [url]http://imgur.com/85bEWIj[/url] I sold it for 20 keys (about 1.3) plus one earbud (from [url]http://backpack.tf/stats/30042/5/66[/url]) plus the shako, so 2.3 + Shako.

Shako sales haven't been numerous. At most it's worth 2.5 ([url]http://www.tf2outpost.com/trade/15511344[/url]). Mr. Lee's offer ([url]http://www.tf2outpost.com/trade/14160302[/url]) gives it a lower value of about 1.8. That's the highest pure offer that I've found so I'm taking that as an approximation for the lower value.

In total, I sold my Phosphorous Grimm Hatte for 2.3 + 1.8 = 4.1.

I bought Grimm with a Spellbound Katyusha (evidence on the forums but it was still new so can't really be considered). Before that: [url]http://www.tf2outpost.com/trade/15205793[/url] "AntiFreeze HWAH" which is a hat that also needs an update. I've tried... It's too hard for me, so I'll use another pure sale.

[url]http://www.tf2outpost.com/trade/15186770[/url] Three pure. It sold very quickly. However, he had been trying to sell it for more on the Steam market. [url]http://www.tf2outpost.com/trade/14523959[/url] Therefore I'm taking 3 as the lower value.

I'm confident in my higher value. My lower one, however, is possibly a bit too low. The reason is, quite simply, that this hat is rare and sales are difficult to find. If you can find reason for a higher low value (be sure to have supporting evidence that considers over-payments and aged suggestions) then please bring it up.