Sale 1:

Sold with a ~1 key in sweets for Green Confetti Airdog (13), 12 keys total

https://backpack.tf/profiles/76561198142438504#!/compare/1501804800/1501891200

https://backpack.tf/profiles/76561198301192601#!/compare/1501804800/1501891200

Airdog:

~25$= ~13 keys

(keys were ~1.94$)

https://marketplace.tf/items/30767;5;u6

2 weeks undold at 16

https://imgur.com/a/Q9u8n

Sale 2:

Sold for Orbiting Planets Brain Bucket (10)

https://backpack.tf/profiles/76561198301192601#!/compare/1501718400/1501804800

Bucket:

sellers for ~10 and buyers for ~9, i guess 10 will work

https://imgur.com/a/LWRGx

Sale 3:

Only 8 keys here matches

https://backpack.tf/profiles/76561198207603105#!/compare/1505260800/1505347200

Sale 4:

obv high outlier

https://backpack.tf/profiles/76561198034268412#!/compare/1505692800/1505779200

Sale 5:

Scm

https://backpack.tf/profiles/76561198060730470#!/compare/1497830400/1498003200

Seller for ~20 keys on scm:

http://steamcommunity.com/market/listings/440/Unusual%20Field%20Practice?filter=smoking

Sales at 8,10,12,100(?)

8 get countered by buyers, 100 is obviously high. going with 10-12 range

Sellers for 80 at classies + 20 on scm