Resuggestion, thanks to everyone's help!

Old suggestion: https://backpack.tf/suggestion/6097d2f7b6255913121b1d14#comment-6097d838be43506a625aba58

Item: https://backpack.tf/item/3344322721

1 of 2, only one available on the market currently, and 5 recent sales.

Sale 1: 95 pure

https://backpack.tf/profiles/76561198049884052#!/compare/1619481600/1619568000

https://backpack.tf/profiles/76561198030340105#!/compare/1619481600/1619568000

Sale 2: Untraceable, seems to be a cash trade.

https://backpack.tf/profiles/76561198030340105#!/compare/1620259200/1620345600

https://backpack.tf/profiles/76561198834884148#!/compare/1620259200/1620345600

Sale 3: 90 pure (credits to Lemons for providing the screenshot)

https://gyazo.com/a312103d5ea56cee799980f8289d30bf

Sale 4: 105 pure

https://gyazo.com/d3f2035b7b1d8110a3838985ad2512c4

Sale 5: Bulk for Blizzardy Storm HazMat Headcase, excluding

https://backpack.tf/profiles/76561198043209660#!/compare/1615248000/1615334400

The sale on the previous suggestion was 6 months ago, so excluding that one as well.

Therefore, we have 3 usable sales at 90, 95, and 105. Using 90-105 as the final result.