Hello and welcome to my another unusual suggestion.

Could only find one recent sale, 2 in existence. Dont know about the other probably its not for sale

Sold for a clean Self-Made Nice Winter Crate Key 2012

http://backpack.tf/profiles/76561197963746116#!/compare/1465862400/1465948800

Another sale from a previous suggestion from Selfish | trade.tf (Rejected)

http://backpack.tf/profiles/76561198053252981#!/compare/1461715200/1461801600

Rounding to ~200

Any suggestion/Updates/Proof/Counter-Proof is gladly accepted :) Thanks for your time