Month 1 https://gladiator.tf/sales?item=Electric%20Hat%20Protector%20Universal%20Translator&at=2022-05-21T10:52:57.647Z

1 @ 19 keys 28.88 ref

Month 2 https://gladiator.tf/sales?item=Electric%20Hat%20Protector%20Universal%20Translator&at=2022-04-21T10:52:57.647Z

1 @ 17 keys 44.11 ref

1 @ 17 keys 53 ref

1 @ 22 keys 10 ref

Month 3 https://gladiator.tf/sales?item=Electric%20Hat%20Protector%20Universal%20Translator&at=2022-03-21T10:52:57.647Z

1 @ 16 keys 54.55 ref

1 @ 17 keys 8.11 ref

1 @ 17 keys 12.77 ref

2 @ 18 keys

1 @ 18 keys 44 ref

https://marketplace.tf/items/tf2/30658;5;u94

$44.99 / $1.74 = 25.86 keys

https://mannco.store/item/440-electric-hat-protector-unusual-universal-translator

$49.99 / $1.59 = 31.44 keys

https://backpack.tf/profiles/76561198219926077#!/compare/1647561600/1647648000

https://backpack.tf/profiles/76561198154426383#!/compare/1647475200/1647561600

They bought the Aussie Grenade for ~22 https://backpack.tf/profiles/76561198148983233#!/compare/1647475200/1647561600, so this was ~18 keys

https://backpack.tf/profiles/76561199084678402#!/compare/1646870400/1648339200

https://gladiator.tf/listings/6240759014745d93a5b4d5a6

18 keys

https://backpack.tf/profiles/76561199054779347#!/compare/1650240000/1650326400

?

https://backpack.tf/profiles/76561198795826430#!/compare/1647388800/1647475200

https://gladiator.tf/listings/62339368443c0a8d63f47636

~18 keys

https://backpack.tf/profiles/76561198795826430#!/compare/1647907200/1647993600

https://backpack.tf/profiles/76561198880451191#!/compare/1647907200/1647993600

https://gladiator.tf/listings/623a825313b9f4a1f7706536

~21 keys

https://backpack.tf/profiles/76561198836967499#!/compare/1652054400/1652140800

https://backpack.tf/profiles/76561198007474469#!/compare/1652054400/1652572800

Bulky

https://backpack.tf/profiles/76561199111073161#!/compare/1647734400/1647820800

18 keys

https://backpack.tf/profiles/76561199109543426#!/compare/1647993600/1648166400

Untrace QS.store dump

https://backpack.tf/profiles/76561199110809353#!/compare/1650153600/1650240000

https://backpack.tf/profiles/76561198008054629#!/compare/1648512000/1650499200

https://gladiator.tf/listings/625c9d291a41c030a6a9a051

21 keys

https://backpack.tf/profiles/76561198453530349#!/compare/1646784000/1646870400

https://backpack.tf/profiles/76561198835413031#!/compare/1646784000/1646956800

https://gladiator.tf/listings/62297e4674f35f3bc6d84f6c

18 keys

https://backpack.tf/profiles/76561198180816425#!/compare/1649808000/1650844800

Aces High Hottie's Hoodie (~9) + Thundering Spirit Taunt: The Bunnyhopper (~4) = 13, low

https://backpack.tf/profiles/76561198064724507#!/compare/1649894400/1649980800

?

https://backpack.tf/profiles/76561198006116828#!/compare/1649980800/1650067200

https://backpack.tf/profiles/76561198316071886#!/compare/1649980800/1650067200

Bulk for Sunbeams Nunhood

https://backpack.tf/profiles/76561198316071886#!/compare/1651622400/1651708800

~19 keys

https://backpack.tf/profiles/76561199075234448#!/compare/1645747200/1646265600

Scrap matches

https://backpack.tf/profiles/76561199127773728#!/compare/1647129600/1647302400

https://backpack.tf/profiles/76561198195734346#!/compare/1647043200/1647129600

https://gladiator.tf/listings/622d84af1d0ef8fbdacded14

I'm guessing this was ~18-19 keys

https://backpack.tf/profiles/76561198080078173#!/compare/1648598400/1650412800

https://backpack.tf/profiles/76561198092756250#!/compare/1650758400/1650844800

https://steamcommunity.com/market/listings/440/Unusual%20Universal%20Translator

SCM April 24, ~17 keys

https://backpack.tf/profiles/76561198092756250#!/compare/1651276800/1651449600

https://gladiator.tf/time-machine?item=Electric%20Hat%20Protector%20Universal%20Translator&at=2022-05-02T13:55:21.000Z

SCM sale was redumped for ~19 keys (implying ~17 would be low)

https://backpack.tf/profiles/76561198311498888#!/compare/1650412800/1650499200

https://stntrading.eu/item/tf2/Unusual+Electric+Hat+Protector+Universal+Translator

Likely somewhere ~18-21 keys

Classies:

https://gladiator.tf/time-machine?item=Electric+Hat+Protector+Universal+Translator&at=2022-05-23T10%3A47%3A00.000Z

Sellers at ~21

https://gladiator.tf/time-machine?item=Electric+Hat+Protector+Universal+Translator&at=2022-05-22T07%3A13%3A00.000Z

Buyers from yesterday were up to ~20

I think the number of sales and dumps at ~18-19 suggest 17 may be a little low now, so going with 18 - 21 keys.