Countering from here given lack of response

Credits to Orete and Shuffle Spy

Updated suggestion with 3 more sales, wanted to thank Sir Spoon The Second for the item histories.

Sale 1 - 11/09/23

https://backpack.tf/item/10488589081

https://backpack.tf/profiles/76561198044925142#!/compare/1699401600/1699574400

https://backpack.tf/profiles/76561198371695163#!/compare/1699488000/1699833600

https://imgur.com/a/VKHnjsJ

95 keys

Sale 2 - 12/04/23

https://backpack.tf/item/8080004550

https://backpack.tf/profiles/76561198209640976#!/compare/1701648000/1701734400

https://backpack.tf/profiles/76561198067578509#!/compare/1701475200/1701734400

112 keys

Sale 3 - 01/04/24

https://backpack.tf/item/10156055402

https://backpack.tf/profiles/76561199026390261#!/compare/1704240000/1704326400

https://backpack.tf/profiles/76561199048151985#!/compare/1704326400/1704672000

https://imgur.com/a/K016qZ8

112 keys + 24.22 ref = ~112 keys

Sale 4 - 01/28/24

https://backpack.tf/item/14101070206

https://backpack.tf/profiles/76561197966756586#!/compare/1706313600/1706400000

https://backpack.tf/profiles/76561198056762344#!/compare/1706313600/1706400000

https://imgur.com/a/MSPI0xb

Collector's Darwin's Danger Shield (80) + 40 keys = 120 keys

There aren't any Gladiator statistics related to the Collector's Darwin's Danger Shield but I bought one on 01/14/24 for 80 keys: https://imgur.com/a/Oak7yot

Quickbuyers also at 75 keys: https://next.backpack.tf/classifieds?itemName=Darwin%27s%20Danger%20Shield&quality=14&killstreakTier=0

Sales

95

112

112

120

Considering the first sale at 95 keys an outlier since it was a quicksell.

Shuffle Spy:

https://backpack.tf/profiles/76561198124894928#!/compare/1709164800/1709596800 - New sale at 120 perhaps (needs more confirmation)

Not seeing what makes 95 a quicksell other than the buyer saying it was. Unless something explicitly says 95 is too low, that should be the low end.

Taking a range with all sales, including the potential 120 sale, at 95 - 120 keys.