Sale 1:

https://backpack.tf/profiles/76561198283993462#!/compare/1550016000/1550102400

used with keys to buy an orbiting fire company mann, use there

Sale 2:

https://backpack.tf/profiles/76561198372722828#!/compare/1550102400/1550275200

10 keys, low

Sale 3:

https://backpack.tf/profiles/76561198080594357#!/compare/1550102400/1550275200

https://backpack.tf/profiles/76561198090944581#!/compare/1549756800/1550275200

idk

Sale 4:

https://backpack.tf/profiles/76561198043826027#!/compare/1550102400/1550188800

Bought with Max's Head (20.5, sellers at ~21 buyers at 20k) + 12 keys for a Tesla Coil Brown Bomber (48), seller at 42.

20.5+12= 32.5

42-32.5= 9.5 keys, low

Sale 5:

https://backpack.tf/profiles/76561198043826027#!/compare/1554508800/1554681600

Sold with Terror Watt Tartan and 10 keys for a Festivized Pro Ks Flamthrower, couldn't find direct mini for it, using marketplace to determine its price, in which i'm taking april's sales.

https://marketplace.tf/items/208;11;australium;kt-3;festive

https://marketplace.tf/items/5021;6/Mann%20Co.%20Supply%20Crate%20Key

53.2$-> under buyorders, not using

55$/1.77$=31 keys

53.33$ (2x)-> under buy orders, not using

59.2$/1.78$=33.2 keys

(33.2+31)/2=32.1 keys

Tartan has a seller at 11 keys.

So 32.1-11-10=11.1 keys

Sale 6:

https://backpack.tf/profiles/76561198847161825#!/compare/1554422400/1554595200

https://backpack.tf/profiles/76561198320373597#!/compare/1554422400/1554595200

idk, key histories do not match

Sale 7:

https://backpack.tf/profiles/76561198847161825#!/compare/1554768000/1555027200

Sold for Gangreen BoA?

https://backpack.tf/item/2670196440

https://backpack.tf/profiles/76561198241353954#!/compare/1554163200/1554422400 (BOA MINI)

5 keys, low

Sale 8:

https://backpack.tf/profiles/76561198089353865#!/compare/1554940800/1555027200

idk

Sale 9:

https://backpack.tf/profiles/76561198089353865#!/compare/1555027200/1555113600

https://backpack.tf/profiles/76561198090147535#!/compare/1555027200/1555113600

idk

Sale 10:

https://backpack.tf/profiles/76561197990636402#!/compare/1555113600/1555372800

https://backpack.tf/profiles/76561198337734785#!/compare/1555113600/1555286400

Aces High Birdcage, will use there.

Sale 11:

https://backpack.tf/profiles/76561198081642376#!/compare/1549670400/1550361600

Freighter is a tf2mart (not sure) but anyways so would be hard to trace

idk

Sale 12:

https://backpack.tf/profiles/76561198275530188#!/compare/1550102400/1550188800

as mentioned earlier, Freighter is a bot, not using even if i knew what was the sale, as there is a thing called 'balance' on these sites, never sure what was or what was not included in these trades.

Sale 13:

https://backpack.tf/profiles/76561198275530188#!/compare/1550361600/1550534400

incomplete, but was sold to zol's buyorder

Sale 14:

https://backpack.tf/profiles/76561198193707370#!/compare/1552262400/1552435200

11 keys

Sale 15:

https://backpack.tf/profiles/76561198193707370#!/compare/1552608000/1552780800

idk, all unus were sold to the bot

Sale 16:

https://backpack.tf/profiles/76561198071588645#!/compare/1552608000/1552867200

10 keys??? not showing up, but keys went to scrap, unusuable anyways

Sale 17:

https://backpack.tf/profiles/76561198358778649#!/compare/1552694400/1552867200

https://backpack.tf/profiles/76561198071588645#!/compare/1552694400/1552867200

idk not even showing up

Sale 18:

https://backpack.tf/profiles/76561198362008411#!/compare/1549238400/1549411200

https://backpack.tf/profiles/76561198267589362#!/compare/1549152000/1549411200

3 keys + larrikin for cannonball probably. will use there, not someone can take it xd

Sale 19:

https://backpack.tf/profiles/76561198158206236#!/compare/1549411200/1549497600

https://backpack.tf/profiles/76561198267589362#!/compare/1549497600/1549756800

?

Sale 20:

https://backpack.tf/profiles/76561198158206236#!/compare/1549584000/1549756800

https://backpack.tf/profiles/76561198267589362#!/compare/1549411200/1549843200

idk..

Sale 21:

https://backpack.tf/profiles/76561198846287608#!/compare/1549670400/1549843200

https://backpack.tf/profiles/76561198267589362#!/compare/1549584000/1549843200

probably the Hephaistos, use there

Sale 22:

https://backpack.tf/profiles/76561198846287608#!/compare/1549670400/1549843200

https://backpack.tf/profiles/76561198012613726#!/compare/1549670400/1549843200

mhm, idk

Sale 23:

https://backpack.tf/profiles/76561198172063670#!/compare/1550188800/1550534400

sold to zol buyorder, qs

Sale 24:

https://backpack.tf/profiles/76561198110475659#!/compare/1552953600/1553126400

Smoking Backwards, feel free to use there ^_^

Sale 25:

https://marketplace.tf/items/314;5;u29

https://marketplace.tf/items/5021;6/Mann%20Co.%20Supply%20Crate%20Key

17.24 on Feb 6th

17.24/1.81= 9.5k , low

Sale 26:

https://marketplace.tf/items/314;5;u29

https://marketplace.tf/items/5021;6/Mann%20Co.%20Supply%20Crate%20Key

23.8$ on Apr 3rd

23.8/1.79=13.2 keys -> 13k

11 flat as 13 is an outlier with 2 sellers at 12 keys.