Sales

Sale 1: Bulk (or just a completely uneven trade..)

https://backpack.tf/profiles/76561198328282971#!/compare/1599004800/1599091200

https://backpack.tf/profiles/76561198171928251#!/compare/1599091200/1599177600

Sale 2: Bulk

https://backpack.tf/profiles/76561198166119883#!/compare/1598400000/1598745600

https://backpack.tf/profiles/76561198328282971#!/compare/1598313600/1598486400

Sale 3: Untraceable

https://backpack.tf/profiles/76561198057897812#!/compare/1596758400/1596844800

https://backpack.tf/profiles/76561198109218538#!/compare/1596844800/1596931200

It could be the 20 keys there, however, I don't see a buyout, so unfortunately this sale wont help.

Sale 4: Sold for 14 keys

https://backpack.tf/profiles/76561198288235862#!/compare/1596499200/1596585600

https://backpack.tf/profiles/76561199073805105#!/compare/1596499200/1596585600

Sale 5: Untraceable

https://backpack.tf/profiles/76561198267189538#!/compare/1596240000/1596326400

https://backpack.tf/profiles/76561198443684178#!/compare/1596240000/1596326400

Other exchanges, such as with marketplace, and stn.

https://backpack.tf/item/5648355459

Marketplace

https://marketplace.tf/items/tf2/778;5;u58

September

57.75 on September 20 (57.75/1.85 = 31~)

https://manic.tf/keyprice/?at=2020-09-20

October

55.55 on October 6 (55.55/1/87 = 30~)

https://manic.tf/keyprice/?at=2020-10-06

https://backpack.tf/item/5648355459

Current Classifieds

https://backpack.tf/classifieds?item=Gentleman%27s%20Ushanka&quality=5&tradable=1&craftable=1&australium=-1&particle=58&killstreak_tier=0

https://gyazo.com/009d5bd7daa1a9a6cfa8d88878c404fd

Summary

Sales at 14.

Marketplace sales at 30 and 31.

Conclusion

14 is under buyers, excluding as a low outlier.

Going with 30-31 here.

Take it easy.