Range: 16-21

Sales at 21, 20, 18, 17.5, and 16.

1st sale:

Bomber for Gfetti Samur Eye (19 recent)+ 2 keys

~=21

https://backpack.tf/profiles/76561198147043390#!/compare/1499817600/1499904000

2nd Sale:

Sale for 20 pure

https://backpack.tf/profiles/76561198175909686#!/compare/1499558400/1499817600

3rd sale:

Bomber + 1 key for Peace Hermes (19 recent)

~=18 keys

https://backpack.tf/profiles/76561198068204554#!/compare/1501632000/1501804800

4th Sale:

Bomber for Blizzardy Madame Dixie (17 recent) + 17 ref

~=17.5

https://backpack.tf/profiles/76561198175909686#!/compare/1501286400/1501372800

5th Sale:

Bomber for Orb Fire Reggae (15.5 recent) +~ 1keys in unturned/steam items

~=16 keys

http://i.imgur.com/UA3nDKp.png

http://i.imgur.com/1QkvGks.jpg