Credit to Prince Tissue > Trading Services, Cheers and Blaze for all the help!

Sale 1)

https://next.backpack.tf/item/14153987135

https://next.backpack.tf/profiles/76561198079990847/compare?from=1706400000&to=1706572800

https://next.backpack.tf/profiles/76561198406114836/compare?from=1706486400&to=1706572800

https://prnt.sc/uR5R_1a-l6ny

Sold with 50 Keys for an Unusual Dark Twilight Mourning Mercs - Better used there

Sale 2)

https://next.backpack.tf/item/14153987135

https://next.backpack.tf/profiles/76561198406114836/compare?from=1706572800&to=1706659200

https://next.backpack.tf/profiles/76561198439498211/compare?from=1706572800&to=1706659200

Sale Confirmation: https://gyazo.com/3661fa92beb84491655ec16abf709f20

https://gyazo.com/6f9d6799368dc5eea879b2d340f09c20

https://gyazo.com/53397c450d30dd88e9b3994cdd1d66de (Credit to Prince Tissue > Trading Services)

Sold for 25 Keys and a Festive Falling Star Night Cap (10 keys) --- 35 keys 

Mini for Festive Falling Star Night Cap ---- 10 keys

https://marketplace.tf/items/tf2/31422;5;u321

Sold twice for 19.95 = ~ 12 keys, another time for $19.99 = ~ 12 keys and one more time for $29.99 =~ 20 keys

I would exclude the 20 key sale given it's too high with sellers at 10.5 keys and buyers at 8.1 keys - https://backpack.tf/classifieds?item=Nightcap&quality=5&tradable=1&craftable=1&particle=321&australium=-1&killstreak_tier=0

Blaze:

the other sellers at 11~ keys on the nightcap seems to suggest that the marketplace sales are slightly high on their own though. other sales not on marketplace should have been reviewed as well.

https://backpack.tf/profiles/76561198347064063#!/compare/1710979200/1711238400

https://backpack.tf/profiles/76561198261483133#!/compare/1711152000/1711238400 - bulk

https://backpack.tf/profiles/76561198033378852#!/compare/1710460800/1710547200

https://backpack.tf/profiles/76561198140316312#!/compare/1710460800/1710547200 - bulk

https://backpack.tf/profiles/76561198110858518#!/compare/1710288000/1710374400

https://backpack.tf/profiles/76561198033378852#!/compare/1710288000/1710374400 - bulk

https://backpack.tf/profiles/76561198113987622#!/compare/1710892800/1711584000 - sold for 8 keys

Taking a range of 8-12 keys or an average of 10 keys.

So 25 + 10 keys = 35 keys

Sale 3)

https://next.backpack.tf/item/14153987135

https://next.backpack.tf/profiles/76561198439498211/compare?from=1706572800&to=1706659200

https://next.backpack.tf/profiles/76561198064724507/compare?from=1707523200&to=1707609600

Bulk

Sale:

35 Keys

Going 35 keys flat.

Feedback welcome. Thanks!