https://marketplace.tf/items/tf2/104;5;u17

$109.99 / $1.91 = 57.59 keys

//

https://backpack.tf/item/3321148647

spec ks and double spelled

not using

//

https://backpack.tf/profiles/76561198207603105#!/compare/1588723200/1590019200

https://backpack.tf/profiles/76561197998563148#!/compare/1589932800/1590019200

60 keys

//

https://backpack.tf/profiles/76561197998563148#!/compare/1590019200/1591833600

https://backpack.tf/profiles/76561198305494036#!/compare/1589932800/1590019200

Untraceable

60 key sale from above sold to bot

//

https://backpack.tf/profiles/76561198305494036#!/compare/1591401600/1591488000

https://backpack.tf/profiles/76561198061489334#!/compare/1591401600/1591488000

25 key matches

untraceable

//

https://backpack.tf/profiles/76561198061489334#!/compare/1593388800/1593475200

https://backpack.tf/profiles/76561198026941076#!/compare/1593388800/1593561600

Terror-Watt Specialized Killstreak Dr's Dapper Topper

One other sale on Marketplace

https://marketplace.tf/items/tf2/252;5;u57;kt-2

$52.1 / $2.01 = 25.92 keys

Low

//

https://backpack.tf/profiles/76561197994697258#!/compare/1593475200/1593648000

https://backpack.tf/profiles/76561198026941076#!/compare/1593388800/1593561600

Bulk

//

https://backpack.tf/profiles/76561198342161127#!/compare/1590624000/1590710400

https://backpack.tf/profiles/76561198212461467#!/compare/1590364800/1590710400

60 keys (duped)

//

https://backpack.tf/profiles/76561198212461467#!/compare/1592352000/1592438400

https://backpack.tf/profiles/76561198850178158#!/compare/1592352000/1592438400

61 item stack, which is 39 keys and refined

After the above 60 key duped sale

//

Sales

58 (marketplace, unsure if clean or duped)

60 (clean)

60 (duped)

sellers:

https://gyazo.com/e2d4b24fb57a54cc47c3cdb029ee5898

49 keys (duped)

54 keys (clean)

hmm

both 60 key sales ended up selling to bots afterwards

but its so close to the only other sale on marketplace so i feel inclined to keep it

maybe I go 54-60 to account for the lower clean seller¿