Thanks to Zeus_Junior S>AllClassUnu and ٠•● Bubbles Zest.

Classifieds: http://backpack.tf/classifieds?item=Physician%27s+Procedure+Mask&quality=6&tradable=1&craftable=-1&australium=-1

Screenshot(s) of Classifieds: http://imgur.com/a/LYBdZ

<Sellers>

2 ref | http://backpack.tf/item/1067915176 | http://backpack.tf/u/76561198241439576 | Listed about 9 hours ago

4 ref | http://backpack.tf/item/771632875 | http://backpack.tf/u/76561198304350375 | Listed 11 days ago [Bumped]

4 ref | http://backpack.tf/item/1017098737 | http://backpack.tf/u/76561198199899043 | Listed 11 days ago

9 ref | http://backpack.tf/item/849068371 | http://backpack.tf/u/76561197969363424 | Listed 25 days ago [Bumped]

10.55 ref | http://backpack.tf/item/600208297 | http://backpack.tf/u/76561198209962689 | Listed about 5 hours ago

14 ref | http://backpack.tf/item/395251692 | http://backpack.tf/u/76561198152915389 | Listed 25 days ago

17.33 ref | http://backpack.tf/item/677922691 | http://backpack.tf/u/76561198135528792 | Listed a day ago

1 key | http://backpack.tf/item/1086264803 | http://backpack.tf/u/76561198126267465 | Listed 7 months ago [Bumped]

1 key | http://backpack.tf/item/277551939 | http://backpack.tf/u/76561197975128756 | Listed 10 months ago [Bumped]

1.1 keys | http://backpack.tf/item/1114778304 | http://backpack.tf/u/76561198173925222 | Listed about 3 hours ago

<Buyers>

2.11 ref | http://backpack.tf/u/76561198304350375 | Listed about 13 hours ago [Bumped]

2 ref | http://backpack.tf/u/76561198064804350 | Listed a day ago [Bumped]

1.66 ref | http://backpack.tf/u/76561198126637589 | Listed 10 months ago