Item 1: https://backpack.tf/item/11488930491

Sale 1:

Mannco.Store

Sale 2:

https://backpack.tf/profiles/76561198115175633#!/compare/1760140800/1760227200

https://backpack.tf/profiles/76561199195900525#!/compare/1760054400/1760140800

Sold alongside the Strange Killstreak Conniver's Kunai for the Void Crawlers Runner's Rhythm, counts as bulk since it's most likely worth less than 50% of the trade

Sale 3:

https://backpack.tf/profiles/76561199195900525#!/compare/1761091200/1761177600

https://backpack.tf/profiles/76561198416692924#!/compare/1759795200/1761264000

4 keys

Sales:

4

Sellers:

BPTF - https://imgur.com/Z5Xgfhs 5 keys (3 months), MPTF buyout of ~5.5 keys, 7 keys (2 months)

MPTF - https://marketplace.tf/items/tf2/30921;5;u3127 $11.18 capped at 5.5 keys

STN - https://stntrading.eu/item/tf2/Unusual+Dead+Man%27s+Party+Taunt%3A+Runner%27s+Rhythm none

SCM - https://steamcommunity.com/market/listings/440/Unusual%20Taunt%3A%20Runner%27s%20Rhythm?filter=Dead+Man%27s+Party https://imgur.com/UygV6Fq none

Going with 4 keys