Using last 2 months.

Sale 1:

Sold for 5 keys + 38 ref

https://backpack.tf/profiles/76561198841279602#!/compare/1705795200/1705881600

https://backpack.tf/profiles/76561198128126194#!/compare/1705536000/1706054400 - all visible here. Keys are among the first lot.

https://backpack.tf/item/5376125685

= 5.6 keys

Sale 2:

Sold with 13 ref (~0.2 keys) for 5 keys

https://backpack.tf/profiles/76561198251704884#!/compare/1705536000/1705622400

https://backpack.tf/profiles/76561199136027462#!/compare/1705536000/1705622400

https://backpack.tf/item/5376125685

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2024-01-20T06:12:55.041Z - labelled as 4 keys + 52.77 ref

= 4.8 keys

Sale 3:

Sold to a bot for 4 keys + 37.11 ref (~0.6 keys)

https://backpack.tf/profiles/76561199099521803#!/compare/1702166400/1702252800

https://backpack.tf/profiles/76561199132184792#!/compare/1702166400/1702252800

https://backpack.tf/item/12073733522

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2023-12-12T14:35:27.415Z - gladiator confirms

Went to the bot owner after the trade.

= 4.6 keys

Sale 4:

Sold for 4 keys

https://backpack.tf/profiles/76561198079821428#!/compare/1702944000/1703030400

https://backpack.tf/profiles/76561198085750210#!/compare/1702857600/1702944000

https://backpack.tf/item/5587178181

= 4 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199099521803#!/compare/1702166400/1702252800

https://backpack.tf/profiles/76561199139085248#!/compare/1702166400/1702252800

https://backpack.tf/item/10234716160

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2023-12-12T14:35:27.415Z - labelled as 4 keys + 37.11 ref

Some metal matches.

#2

https://backpack.tf/profiles/76561199099521803#!/compare/1700784000/1700870400

https://backpack.tf/profiles/76561199377139129#!/compare/1683331200/1701216000

https://backpack.tf/item/8247370429

SCM

#3

https://backpack.tf/profiles/76561198041705595#!/compare/1700524800/1705276800

https://backpack.tf/profiles/76561199043177646#!/compare/1705190400/1705276800

https://backpack.tf/item/7458716281

Untraceable. Half a key in metal matches.

#4

https://backpack.tf/profiles/76561198141390306#!/compare/1704326400/1705190400

https://backpack.tf/profiles/76561198251704884#!/compare/1704326400/1704412800

https://backpack.tf/item/5376125685

Bulk for Planets Yellow Belt

#5

https://backpack.tf/profiles/76561199099521803#!/compare/1702166400/1702252800

https://backpack.tf/profiles/76561199111292616#!/compare/1702166400/1702252800

https://backpack.tf/item/11350069520

Untraceable

#6

https://backpack.tf/profiles/76561199111292616#!/compare/1702252800/1702339200

https://backpack.tf/profiles/76561199183171982#!/compare/1702252800/1702339200

https://backpack.tf/item/11350069520

Untraceable

#7

https://backpack.tf/profiles/76561199183171982#!/compare/1702252800/1702339200

https://backpack.tf/profiles/76561199026390261#!/compare/1702252800/1702339200

https://backpack.tf/item/11350069520

Untraceable

#8

https://backpack.tf/profiles/76561199161916038#!/compare/1701648000/1701734400

https://backpack.tf/profiles/76561199132184792#!/compare/1701648000/1701734400

https://backpack.tf/item/8389899578

Untraceable

#9

https://backpack.tf/profiles/76561198163665060#!/compare/1706659200/1706745600

https://backpack.tf/profiles/76561199032721186#!/compare/1706659200/1706745600

https://backpack.tf/item/12593511950

Untraceable. 2 keys match. Some metal would've been involved too.

#10

https://backpack.tf/profiles/76561199106461781#!/compare/1705622400/1705708800

https://backpack.tf/profiles/76561199522478149#!/compare/1705622400/1705708800

https://backpack.tf/item/12593511950

Untraceable.

#11

https://backpack.tf/profiles/76561199522478149#!/compare/1705622400/1705708800

https://backpack.tf/profiles/76561199125108615#!/compare/1705708800/1705795200

https://backpack.tf/item/12593511950

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2024-01-20T05:41:05.543Z - labelled as 4 keys + 52.77 ref (~0.8 keys)

Untraceable/bulk-ish for keys

#12

https://backpack.tf/profiles/76561198043444428#!/compare/1706054400/1706140800

https://backpack.tf/profiles/76561198163665060#!/compare/1706486400/1706659200

https://backpack.tf/item/12593511950

Untraceable, probably the marketplace sale on Jan 31st

#13

https://backpack.tf/profiles/76561199139085248#!/compare/1705795200/1705881600

https://backpack.tf/profiles/76561198037215477#!/compare/1705708800/1705881600

https://backpack.tf/item/10234716160

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2024-01-22T05:48:52.775Z - labelled as 5 keys

#14

https://backpack.tf/profiles/76561198261483133#!/compare/1706313600/1706400000

https://backpack.tf/profiles/76561199581722058#!/compare/1706313600/1706400000

https://backpack.tf/item/6995929142

Untraceable. 1 key + nearly a whole key in metal match. Most likely was 4 keys + a key in metal.

#15

https://backpack.tf/profiles/76561198079727972#!/compare/1704758400/1705622400

https://backpack.tf/profiles/76561198841279602#!/compare/1705536000/1705622400

https://backpack.tf/item/5376125685

Untraceable

https://backpack.tf/item/7427846354 - marketplace

https://backpack.tf/item/11891443062 - mannco

Marketplace Sales:

https://marketplace.tf/items/tf2/30839;5;u3003

$13.99, December 7th, December 16th and Jan 31st.

These sales are going to end up being 8+ keys, which is way too high compared to sellers. Excluding.

Unconfirmed Gladiator Sales:

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2024-01-22T06:54:58.548Z - ~January 22nd

5 keys, seen in #13

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2024-01-21T06:54:58.548Z - ~January 21st

4 keys + 55.77 ref (~4.85 keys)

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2024-01-20T06:54:58.548Z - ~January 20th

4 keys + 52.77 ref (~4.8 keys), seen in #11

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2023-12-12T06:54:58.548Z - ~December 12th

4 keys + 37.11 ref (~4.6 keys, 4x?), One instance seen in #1

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20Didgeridrongo&at=2023-12-06T06:54:58.548Z - ~December 6th

4 keys + 21.88 ref (~4.35 keys)

Sellers:

https://imgur.com/a/s0gTjEW

https://backpack.tf/item/12593511950 - ~4.95 keys

https://backpack.tf/item/12033625635 - 5 keys

https://backpack.tf/item/7458716281 - ~5.6 keys

https://backpack.tf/item/5471146776 - ~5.6 keys

https://backpack.tf/item/12073733522 - marketplace

https://backpack.tf/item/8389899578 - marketplace

https://backpack.tf/item/11350069520 - marketplace

Sales at:

4

4.6

4.8

5.6

5.6 may be a bit too high here, with 2 sellers at ~5 keys, one of which is about as old as the sale that occurred at ~5.6 keys (2 weeks). Excluding 5.6.

We have multiple unconfirmed gladiator sales higher than 4.8. Wouldn't be right to exclude them, especially with the pure sale at 5.6 that's already being excluded. Going to give them the benefit of the doubt and include 4.85 and 5 in the range.

Taking 4-5 keys.