Ancient Codex Universal Translator

Using sales from the past 2 months.

New price: 13-16 keys

[proof below]

SALE #1 = 16 keys

https://backpack.tf/profiles/76561198344933095#!/compare/1530828000/1530914400

https://backpack.tf/profiles/76561198094913841#!/compare/1529539200/1531267200

https://gyazo.com/12cf9d2afb46d82dd1e2c62f94a9b1de

Sold for 16 keys.

SALE #2 = 16 keys

https://backpack.tf/profiles/76561198304138933#!/compare/1528495200/1528581600

https://backpack.tf/profiles/76561198152708934#!/compare/1528416000/1528502400

https://gyazo.com/12cf9d2afb46d82dd1e2c62f94a9b1de

Sold for ~16 keys.

SALE #3 = 13 keys

https://backpack.tf/profiles/76561198304138933#!/compare/1530050400/1530136800

https://gyazo.com/12cf9d2afb46d82dd1e2c62f94a9b1de

Bought for ~13 keys.

SALE #4 = 13 keys

https://backpack.tf/profiles/76561198304138933#!/compare/1526680800/1526767200

https://gyazo.com/12cf9d2afb46d82dd1e2c62f94a9b1de

Bought for ~13 keys.

SALE #5 = 14 keys

https://marketplace.tf/items/30658;5;u98

Sold for $27.99 ( / $1,96 ) = 14 keys

SALE #6 = 16 keys

https://marketplace.tf/items/30658;5;u98

Sold for $30 ( / $1,94 ) = 16 keys

SALE #7 = 16 keys

https://marketplace.tf/items/30658;5;u98

Sold for $30 ( / $1,90 ) = 16 keys

SALE #8 = 24 keys

https://marketplace.tf/items/30658;5;u98

Sold for $48 ( / $1,98 ) = ~24 keys.

SALE #9 = 13 keys

https://backpack.tf/profiles/76561198046921199#!/compare/1531440000/1531526400

https://backpack.tf/profiles/76561198253093948#!/compare/1531353600/1531440000

Sold for 13 keys.

SALE #10 = 14 keys

https://backpack.tf/profiles/76561198158284420#!/compare/1531180800/1531267200

https://backpack.tf/profiles/76561198337734785#!/compare/1531180800/1531267200

High likely sold for 14 keys.

SALE #11 = 13 keys

https://backpack.tf/profiles/76561198095236132#!/compare/1531094400/1531180800

https://backpack.tf/profiles/76561198158284420#!/compare/1531094400/1531180800

Sold for 13 keys.

SALE #12 = invalid

https://backpack.tf/profiles/76561198080179568#!/compare/1531440000/1531526400

https://backpack.tf/profiles/76561198058210667#!/compare/1531267200/1531440000

Untrace. Likely quickbought though.

SALE #13 = invalid

https://backpack.tf/profiles/76561198419214840#!/compare/1531267200/1531526400

https://backpack.tf/profiles/76561198058210667#!/compare/1531094400/1531267200

Untrace.

SALE #14 = invalid

https://backpack.tf/profiles/76561198337734785#!/compare/1531180800/1531267200

https://backpack.tf/profiles/76561198272881838#!/compare/1531094400/1531180800

Untrace.

SALE #15 = invalid

https://backpack.tf/profiles/76561198272881838#!/compare/1530576000/1530662400

https://backpack.tf/profiles/76561198086863106#!/compare/1530489600/1530921600

Low?

SALE #16 = 13 keys

https://backpack.tf/profiles/76561198101073746#!/compare/1529712000/1529798400

https://backpack.tf/profiles/76561198140565712#!/compare/1529712000/1529798400

Sold for 13 keys.

SALE #17 = 14 keys

https://backpack.tf/profiles/76561197961643548#!/compare/1530316800/1530576000

https://backpack.tf/profiles/76561198110930731#!/compare/1530403200/1531008000

Sold for 14 keys.

SALE #18 = 14 keys

https://backpack.tf/profiles/76561198189077211#!/compare/1529884800/1530489600

Sold for ~14 in items.

SALE #19 = invalid

https://backpack.tf/item/6837504996

Scrap.tf / tradeit.gg sales.

SALE #20 = invalid

https://backpack.tf/profiles/76561198124625776#!/compare/1530489600/1530921600

https://backpack.tf/profiles/76561198131961959#!/compare/1530230400/1531785600

Not the best idea to use this sale here.

SALE #21 = invalid

https://backpack.tf/profiles/76561198382611393#!/compare/1528416000/1528502400

https://backpack.tf/profiles/76561198834716901#!/compare/1528502400/1528588800

Untrace. Likely gambling though.

SALE #22 = invalid

https://backpack.tf/profiles/76561198164639127#!/compare/1531180800/1531267200

https://backpack.tf/profiles/76561198420083515#!/compare/1531180800/1531267200

Better used there.

SALE #23 = invalid

https://backpack.tf/profiles/76561198289262378#!/compare/1529452800/1529712000

https://backpack.tf/profiles/76561198321469504#!/compare/1529712000/1529798400

Untrace.

SALE #24 = invalid

https://backpack.tf/profiles/76561198051885319#!/compare/1529625600/1529712000

https://backpack.tf/profiles/76561198834955265#!/compare/1529625600/1529712000

Untrace.

SALE #25 = invalid

https://backpack.tf/profiles/76561198326409734#!/compare/1529366400/1530576000

https://backpack.tf/profiles/76561198051885319#!/compare/1529280000/1529366400

Better used there.

SALE #26 = invalid

https://backpack.tf/profiles/76561198328306639#!/compare/1528070400/1528243200

https://backpack.tf/profiles/76561198326409734#!/compare/1528070400/1528329600

Better used there.

SALE #27 = invalid

https://backpack.tf/profiles/76561198234128068#!/compare/1529280000/1529366400

https://backpack.tf/profiles/76561198150135272#!/compare/1529366400/1531353600

Bulk.

SALE #28 = invalid

https://backpack.tf/profiles/76561197964171516#!/compare/1529193600/1529280000

https://backpack.tf/profiles/76561198137588865#!/compare/1529280000/1529366400

Better used there.

SALE #29 = invalid

https://backpack.tf/profiles/76561198080130143#!/compare/1531267200/1531353600

tf2mart shenanigans.

SALE #29 = 15 keys

https://backpack.tf/profiles/76561198210492324#!/compare/1530662400/1530748800

https://backpack.tf/profiles/76561198337734785#!/compare/1530662400/1530748800

Sold for 15 keys.

SALE #30 = invalid

https://backpack.tf/profiles/76561198117957764#!/compare/1529452800/1529712000

https://backpack.tf/profiles/76561198071674964#!/compare/1529366400/1529452800

Better used there.

SUMMARY

Sales: 13 / 13 / 13 / 13 / 13 / 14 / 14 / 14 / 14 / 15 / 16 / 16 / 16 / 16 / 24 keys

Sellers: 16 / 16 / 16 / 17 / 17 keys

https://gyazo.com/849af9481dad3630b68e3d4051c544cc

24 keys is a clear outlier. 13 keys seems to be a common trading point so including that. Going with 13-16 keys.