1 year old price, Foamy helped me with this.

Sold + 2 keys for a GE tin gallon (~40)

http://backpack.tf/profiles/76561198039698600#!/compare/1489536000/1489622400

~38

Sold + 4 in sweets for orbfire rotation

http://backpack.tf/profiles/76561198162154135#!/compare/1490313600/1490486400

Would be ~35 ish

Sold for DBD dogger (~37.5)

http://backpack.tf/profiles/76561198039698600#!/compare/1489881600/1489968000

~38

Sold for 34 keys

http://www.tf2outpost.com/trade/28870065

http://backpack.tf/profiles/76561198190078474#!/compare/1492646400/1492732800

14 keys were for the box

Sold in bulk

http://backpack.tf/profiles/76561198190078474#!/compare/1492732800/1492819200

Not usable

Sold for 36 keys

http://backpack.tf/profiles/76561197964171516#!/compare/1489536000/1489622400

There's also a sale with adds for a PE honchos, which is well over current sellers.

Seller for 35 keys on classifieds - http://imgur.com/a/IMQ3m