Proof below. Overpay is applied.

1 year-old price.

Prices used are of time of sale.

Very under priced. No actual suggestion for this, last accepted one was a year ago with no proof. Peace sign one is worth almost 2 buds.

Very difficult to find sales for these.

Sales:

http://www.tf2outpost.com/trade/14369061

-sold for about 1.3 buds from backpack history (unclear), buyer was looking for it for his collection here: http://www.tf2outpost.com/trade/14227313

-accepted 18 keys+gold medi gun mk II (~1 bud) seen here: http://www.tf2outpost.com/trade/14312087 , but didn't sell to him

http://www.tf2outpost.com/trade/14364038

-sold for cloud 9 handle=1.3 buds

-22 key offer, turned down=~1-1.1 buds

-1 bud offer, turned down

http://www.tf2outpost.com/trade/12008728 (relist)

-22 key offer, then increased to 27 keys=~1.3 buds

-17 keys+bills offer=~1.1 buds

-Old offers: 27 keys (~1.2 buds), 2 buds lel, 22 keys (1 bud), 1 bud

Current trade:

http://www.tf2outpost.com/trade/14427037 only selling as set

Low end is from the very common offers about 1 bud and high end is from the 2nd sale and a few offers.

Conservative bump up. Not enough proof for higher.