Using last 3 months.

Sale 1:

Sold with negligible metal for 9 keys

https://backpack.tf/profiles/76561199581722058#!/compare/1713312000/1713398400

https://backpack.tf/profiles/76561198063524339#!/compare/1713312000/1713398400

https://backpack.tf/item/4443490385

= 9 keys

Sale 2:

Sold to STN for 8 keys + 44.66 ref (~8.5 keys)

https://backpack.tf/profiles/76561198114899125#!/compare/1707350400/1707436800

https://backpack.tf/profiles/76561198311498888#!/compare/1707350400/1707436800

https://backpack.tf/item/1712951243

= 8.5 keys

Sale 3:

Sold to a bot for 8 keys? + 42.11 ref (~8.5 keys)

https://backpack.tf/profiles/76561198192632255#!/compare/1707523200/1707609600

https://backpack.tf/profiles/76561199197624825#!/compare/1707523200/1707609600

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20The%20High%20Five!&at=2024-02-11T11:16:38.655Z - labelled as 8 keys + 42.11 ref

https://backpack.tf/item/3642779036

Only 7 keys + 42.11 ref match on the seller’s end. We see the exact amount of metal matching, it should be fine to assume it sold for what gladiator stated it sold for. It’s more than likely that the seller used the last key on another item they obtained later in the day.

= 8.5 keys

Sale 4:

Sold for 8 keys? + 29.11 ref (~8.5 keys)

https://backpack.tf/profiles/76561198140587647#!/compare/1710115200/1710288000

https://backpack.tf/profiles/76561199111292616#!/compare/1710201600/1710288000

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20The%20High%20Five!&at=2024-03-13T11:41:05.210Z - labelled as 8 keys + 29.11 ref

https://backpack.tf/item/4178124084

Very similar situation as the sale above. 6 keys + 29.11 ref match on the seller’s end. Assuming Gladiator is correct here.

= 8.5 keys

Sale 5:

Sold for 6 keys

https://backpack.tf/profiles/76561199070763552#!/compare/1712188800/1712275200

https://backpack.tf/profiles/76561198253483866#!/compare/1712188800/1712275200

https://backpack.tf/item/2510499481

The trade occurred during the gladiator bot downtime, which is why it may seem pretty low now. I’m fairly confident that this is correct.

= 6 keys

Other Sales:

#1

https://backpack.tf/profiles/76561198122219752#!/compare/1709251200/1713744000

https://backpack.tf/profiles/76561199564942025#!/compare/1711411200/1711497600

https://backpack.tf/item/4443490385

Untraceable

#2

https://backpack.tf/profiles/76561198058571906#!/compare/1708041600/1708387200

https://backpack.tf/profiles/76561199183171982#!/compare/1708214400/1708300800

https://backpack.tf/item/3383213049

Backpack buy

#3

https://backpack.tf/profiles/76561198126910873#!/compare/1712016000/1713657600

https://backpack.tf/profiles/76561199600712993#!/compare/1713398400/1713398400 - no good compare link

https://backpack.tf/item/2513598768

Untraceable

#4

https://backpack.tf/profiles/76561198253483866#!/compare/1712188800/1712275200

https://backpack.tf/profiles/76561198164814063#!/compare/1712188800/1712275200

https://backpack.tf/item/2510499481

Bulk for keys

#5

https://backpack.tf/profiles/76561198164814063#!/compare/1712707200/1712793600

https://backpack.tf/profiles/76561198224623296#!/compare/1712793600/1712880000

https://backpack.tf/item/2510499481

Sold for Spooky Night Party Trick

No sales on the Party Trick, should be used there instead.

#6

https://backpack.tf/profiles/76561198037880958#!/compare/1710547200/1711584000

https://backpack.tf/profiles/76561198306870587#!/compare/1710979200/1711065600

https://backpack.tf/item/2267627615

Untraceable/Bulk

#7

https://backpack.tf/profiles/76561199581722058#!/compare/1711152000/1711238400

https://backpack.tf/profiles/76561198104036940#!/compare/1711152000/1711238400

https://backpack.tf/item/2267627615

Untraceable

#8

https://backpack.tf/profiles/76561198104036940#!/compare/1711238400/1711324800

https://backpack.tf/profiles/76561198377421246#!/compare/1711152000/1711238400

https://backpack.tf/item/2267627615

Untraceable/Bulk. Gambled afterwards.

#9

https://backpack.tf/profiles/76561198311498888#!/compare/1709856000/1709942400

https://backpack.tf/profiles/76561198118753711#!/compare/1709424000/1710028800

https://backpack.tf/item/1712951243

Untraceable

#10

https://backpack.tf/profiles/76561198118753711#!/compare/1713139200/1713744000

https://backpack.tf/profiles/76561199652290612#!/compare/1713052800/1713139200

https://backpack.tf/item/1712951243

Most likely gambled. Was gambled afterwards.

#11

https://backpack.tf/profiles/76561199651832992#!/compare/1712275200/1712361600

https://backpack.tf/profiles/76561198094087367#!/compare/1711929600/1712793600

https://backpack.tf/item/1406695070

Untraceable. Wasn’t unusual prior to this trade.

#12

https://backpack.tf/profiles/76561199095440942#!/compare/1711238400/1711324800

https://backpack.tf/profiles/76561198311498888#!/compare/1711152000/1711238400

https://backpack.tf/item/660727559

Untraceable/Bulk

#13

https://backpack.tf/profiles/76561198311498888#!/compare/1711152000/1711238400

https://backpack.tf/profiles/76561198273331466#!/compare/1711152000/1711324800

https://backpack.tf/item/660727559

Untraceable/Bulk. Gambled afterwards.

https://backpack.tf/item/13217522601 - unusualified

https://backpack.tf/item/5392120640 - marketplace

https://backpack.tf/item/1777343075 - mannco

Sellers:

https://imgur.com/a/WVhClGU

https://backpack.tf/item/12078968066 - 9 keys

https://backpack.tf/item/3383213049 - marketplace

https://backpack.tf/item/7675426011 - marketplace

https://backpack.tf/item/520562732 - marketplace

https://backpack.tf/item/4478675294 - marketplace

https://backpack.tf/item/3642779036 - marketplace

https://backpack.tf/item/5392120640 - marketplace

https://imgur.com/a/gEJzrv1

https://backpack.tf/item/1176973014 - ~10 keys, Uncraftable.

https://stntrading.eu/item/tf2/Unusual+Holy+Grail+Taunt%3A+The+High+Five%21

Sales at:

6

8.5 (3x)

9

Buyers at ~8 keys, excluding 6.

Taking 8.5-9 keys.