That was too quick with your help. Thanks!

Sales:

Sold for Smoking Honcho's Headgear worth 11.5k, rounding to 12.

https://backpack.tf/profiles/76561198097010909#!/compare/1596758400/1596931200

Taking as 11k(11+0.5 key worth of refined = 11.5, rounding to 12)

Brought for?

https://backpack.tf/profiles/76561198097010909#!/compare/1596672000/1596758400

Untraceable.

Sold for Magnetic hat protector Phononaut worth 15.5k rounding to 16.

https://backpack.tf/profiles/76561198254049895#!/compare/1596758400/1596844800

Taking as 11k(11+4.5 keys = 15.5, rounding to 16)

Brought for?

https://backpack.tf/profiles/76561198974703657#!/compare/1596153600/1596412800

Untraceable.

Marketplace sales:

https://marketplace.tf/items/tf2/604;5;u61

June 6: 22/1.99 = 11k

May 16: 22.95/1.89 = 12k

May 31: 19.99/1.91 = 10k

Also, a seller at 13k.

Summary:

Two sales for 11k, another for 12k which were sold for other unusuals.

So a total of two sales for 11k and one 12k. Two untraceable, probably moved somewhere.

Conclusion:

I think a 10-12k price is my suggestion. Unchanged, but still a new one.