Resuggestion, thanks to Xergoyf for the info!

Challenge 19, Team F.L.A.M.B.E.S!

45th suggestion, made by Mikey!

Sale 1:

https://backpack.tf/profiles/76561198135388328#!/compare/1588291200/1588377600

https://backpack.tf/profiles/76561198076912464#!/compare/1576281600/1588377600

Scrap.tf sale, not including.

Sale 2:

https://backpack.tf/profiles/76561198248600726#!/compare/1589414400/1590105600

https://backpack.tf/profiles/76561197974799290#!/compare/1589241600/1589500800

Untrace

Sale 3:

https://backpack.tf/profiles/76561197974799290#!/compare/1589500800/1589673600

https://backpack.tf/profiles/76561198339438430#!/compare/1589500800/1589673600

Sold with C9 bone Dome(8.5) for 19 keys

Total is ~10.5 keys

Sale 4:

https://backpack.tf/profiles/76561198339438430#!/compare/1590969600/1591056000

https://backpack.tf/profiles/76561198433931017#!/compare/1590969600/1591056000

1:1 for a Cloud 9 Hotrod, use there, likely ends up low here.

Sale 5:

https://backpack.tf/profiles/76561198993631639#!/compare/1588032000/1588118400

https://backpack.tf/profiles/76561198323145919#!/compare/1587081600/1588118400

Untrace

Sale 6:

https://backpack.tf/profiles/76561198323145919#!/compare/1588118400/1588204800

https://backpack.tf/profiles/76561199006915718#!/compare/1587859200/1588204800

1:1 for P. Fetti Killer's Kabuto. (15)

Mini for Kabuto: https://backpack.tf/suggestion/5ef7fba2b3f5aa307711a18a

Sale 7:

https://backpack.tf/profiles/76561199006915718#!/compare/1588204800/1588377600

https://backpack.tf/profiles/76561198217385159#!/compare/1588204800/1588377600

Untrace

Sale 8:

https://backpack.tf/profiles/76561198217385159#!/compare/1588118400/1588204800

https://backpack.tf/profiles/76561198331508691#!/compare/1588118400/1588204800

Sold for 10 keys

Sale 9:

https://backpack.tf/profiles/76561198331508691#!/compare/1588204800/1588291200

https://backpack.tf/profiles/76561199025158544#!/compare/1588204800/1588291200

Sold for ~11 keys

Sale 10:

https://backpack.tf/profiles/76561199025158544#!/compare/1588464000/1588550400

https://backpack.tf/profiles/76561198993686702#!/compare/1588550400/1588636800

Untrace

Sale 11:

https://backpack.tf/profiles/76561198993686702#!/compare/1588896000/1588982400

https://backpack.tf/profiles/76561198232334216#!/compare/1589241600/1590624000

Untrace

Sale 12:

https://backpack.tf/profiles/76561198232334216#!/compare/1589241600/1590624000

https://backpack.tf/profiles/76561198376483498#!/compare/1589155200/1589328000

Untrace

Sale 13:

https://backpack.tf/profiles/76561198376483498#!/compare/1589760000/1590192000

https://backpack.tf/profiles/76561198214790153#!/compare/1590019200/1590105600

Untrace

Sale 14:

https://backpack.tf/profiles/76561198214790153#!/compare/1590105600/1590624000

https://backpack.tf/profiles/76561198376483498#!/compare/1590364800/1590796800

Untrace

Sale 15:

https://backpack.tf/profiles/76561198376483498#!/compare/1590364800/1590796800

https://backpack.tf/profiles/76561198214790153#!/compare/1590710400/1590969600

Sold for a bunch of random crap.

Sale 16:

https://backpack.tf/profiles/76561198376483498#!/compare/1591747200/1591833600

https://backpack.tf/profiles/76561198094486241#!/compare/1591747200/1591833600

Sold for a Miami Nights Furious Fukaamigasa (10.5) + ~1 key in randoms stuff. Rounding to 12 keys.

Mini for the Furious Fukamigasa: https://backpack.tf/suggestion/5ef7fb98fa5fc23aac2c55f6

Sale 17:

https://backpack.tf/profiles/76561198062668862#!/compare/1589673600/1589760000

https://backpack.tf/profiles/76561198280863816#!/compare/1589500800/1589760000

15 keys pure.

Sale 18:

https://backpack.tf/profiles/76561198850274253#!/compare/1588032000/1588118400

https://backpack.tf/profiles/76561198172690987#!/compare/1588032000/1588118400

17 keys pure. B/O from Johan was 15.

B/O Proof: https://bot.tf/stats/listings/Y80OOE0X

Sale 19:

https://backpack.tf/profiles/76561198172690987#!/compare/1589500800/1589587200

https://backpack.tf/profiles/76561198022589417#!/compare/1589500800/1589587200

Bulk / Untrace

Sale 20:

https://backpack.tf/profiles/76561198022589417#!/compare/1589587200/1589673600

https://backpack.tf/profiles/76561198063372917#!/compare/1587686400/1589673600

Untrace

Sale 21:

https://backpack.tf/profiles/76561198063372917#!/compare/1586390400/1590019200

https://backpack.tf/profiles/76561198037674114#!/compare/1587254400/1589932800

Bulk / Untrace

Sale 22:

https://backpack.tf/profiles/76561198037674114#!/compare/1590105600/1590278400

https://backpack.tf/profiles/76561198850274253#!/compare/1590192000/1590278400

Bulk / Untrace

Sale 23:

https://backpack.tf/profiles/76561198850274253#!/compare/1592438400/1592524800

https://backpack.tf/profiles/76561198876145428#!/compare/1592352000/1592611200

Untrace

Sale 24:

https://backpack.tf/profiles/76561198876145428#!/compare/1592611200/1592870400

https://backpack.tf/profiles/76561198340829257#!/compare/1592697600/1592784000

1:1 for Ace's High Deep Cover Operator (12.5 keys) - Rounding to 13.

Mini for Deep Cover: https://backpack.tf/suggestion/5ef7fb218e78d15f736e586f

Sale 25:

https://marketplace.tf/items/tf2/30547;5;u56

Can't find item history.

May 16th - $25.00

Keys were $1.89 that day, so 25 / 1.89 = 13.23 keys, rounding to 13.

Sale 26:

https://marketplace.tf/items/tf2/30547;5;u56

Can't find item history.

May 24th - $35.00

Keys were $1.88 that day, so 35 / 1.88 = 18.6 keys, rounding to 19.

Classies:

1 @ 22 Keys for 5 days

2 @ 23 keys for 2+ weeks

Summary of Sales:

2 @ 10.5 keys

1 @ 11 keys

1 @ 11.5 keys

2 @ 13 keys

1 @ 15 keys

1 @ 17 keys

[s]1 @ 19 keys[s] Likely high, sellers were at 15 keys that day on classies.

considering low sales,

Xergoyf's Part:

Current market https://imgur.com/a/ykoQe9c

Buyers up to 10.5

I only see one 10.5 (sale 3) which shouldn't be used since its so bulky/prob bulk qs.

The ~11 sale is 10.5, maybe that is the confusion, however then there shouldn't be 11 in the sales at section.

Sale 18 I am only seeing the 15 match, which is what that the b/o was for

https://backpack.tf/profiles/76561198850274253#!/compare/1588032000/1588118400

https://backpack.tf/profiles/76561198172690987#!/compare/1588032000/1588118400

That sale would be another pure sale @ 15

While only a minor fix, I would go 12 - 15 here. The only non-bulky sale at 11 is really a 10.5, which buyers are at currently.