Phosphorous Private Eye

Sale 1

https://backpack.tf/profiles/76561198074178367#!/compare/1577059200/1577145600

-Two unusuals were traded on the same day among the same users, the Haunted Phantasm Jr. Conquistador and the Phosphorous Private Eye. Two different group sets of keys were traded. 36 keys and 38 keys. Based on the listing history for the Conquistador ( https://bot.tf/stats/listings/Y9G902WD ) which was listed for 36, it can be assumed it was sold for the 36. Which leaves the 38 keys.

Sold for 38 keys pure

Subsequent sale is excluded due to the unusual being traded back on the same day

No marketplace sale

Conclusion:

Sale at 38 keys. Pricing this at 38 keys.