Updating an old price. Still seems very accurate. Try to keep the nitpicking to a minimum, I consider this proof very solid, please provide counter-proof if you think otherwise.

Selling

http://www.tf2outpost.com/trade/14264343 (B/O: 3.5 Buds)

Offers:

Smoking KE (~3.9) for Pickel + 20 - value: ~ 3 Buds

2 Buds + Black Bill's + 13 Keys ~ 3 Buds

http://www.tf2outpost.com/trade/13901139 (B/O: 3.5 Buds)

Best Offer:

Searing Fukaamigasa (~1.9) + S. Kritz (~1.6) ~ 3.5 Buds

http://www.tf2outpost.com/trade/12491989

Best Offer:

(Tentative) Stormy Stahlhelm (~1.7) + G.E. Gonzila (~1.8) ~ 3.5 Buds

Fukaa + Kritz ~3.5 Buds (same guy)

Sold

http://www.tf2outpost.com/trade/14335128

for: 2 Buds + Black Bill's + 13 Keys ~ 3 Buds (same guy who offered on the other trade)

http://www.tf2outpost.com/trade/14504313

apparently for: Stormy Storm Blighted Beak (3.1-3.8) - as it's tough to tell who offered I won't factor in unusual overpay ~ 3.5 Buds

http://www.tf2outpost.com/trade/14101606

apparently bought it for: TF Logo Tyrolean (~2.4) + 1 Bud in mixed ~ 3.4 Buds