For items that are outdated, you need to provide proof of sales (if they exist) to have a relevant price for each of the outdated items.

Buy orders are often far too low to be considered sufficient price estimates for outdated items.

https://backpack.tf/profiles/76561198131633162#!/compare/1640304000/1640390400 - The Dixie sold for a Searing Pencil + Haunter Translator

https://marketplace.tf/items/tf2/30658;5;u204 - The Translator sold for $160 (90 Keys)

https://backpack.tf/profiles/76561197991111981#!/compare/1639872000/1639958400 - The Translator also sold for ~50 Keys

https://steamcommunity.com/market/listings/440/Unusual%20Professional%20Killstreak%20Stabbed%20to%20Hell%20Knife%20%28Field-Tested%29 - The Knife sold for $80.40 (36 Keys)

https://imgur.com/a/2kKrU1P - Proof that it was a Hot Knife

https://backpack.tf/item/4555471094 - The Knife's history

You cannot tell the Knife's effect from the SCM graph alone because the sale's price could be for any effect on the Knife.

The Burning Question has no usable sales and the Smoker got updated at 45 Keys

https://gladiator.tf/listings/61eb8498ca423c0a66e5692e - The updated values from this comment will make the sale get capped at the buyout of 1500 Keys

1500 flat would work here.