Sale 1:

https://backpack.tf/profiles/76561198062792308#!/compare/1585353600/1585526400

https://backpack.tf/profiles/76561198965016033#!/compare/1585526400/1585612800

Sold for kabuto or keys, can't tell.

sale 3:

https://backpack.tf/profiles/76561198965016033#!/compare/1586131200/1586217600

https://backpack.tf/profiles/76561198272038643#!/compare/1586131200/1586217600

Sold for Bubbling Drill(9.5) + 1 key

Total is 10.5 keys

Sale 4:

https://backpack.tf/profiles/76561198272038643#!/compare/1586476800/1586563200

https://backpack.tf/profiles/76561198180172962#!/compare/1585958400/1586563200

Sold for Miami Harmburg

use there

https://bot.tf/stats/listings/MGLP7G8W

B/O of 20 keys

Sale 5:

https://backpack.tf/profiles/76561198180172962#!/compare/1586563200/1586908800

https://backpack.tf/profiles/76561198148514448#!/compare/1586736000/1586908800

Sold for Aces Sultan + 6 keys

by sellers, ends up low.

https://bot.tf/stats/listings/MQ0W608P

B/O of 17 keys

sale 6:

https://backpack.tf/profiles/76561198148514448#!/compare/1586908800/1586995200

https://backpack.tf/profiles/76561198071465778#!/compare/1586908800/1586995200

Sold for keys

Sale 7:

https://backpack.tf/profiles/76561198071465778#!/compare/1587254400/1587427200

https://backpack.tf/profiles/76561198125635351#!/compare/1587340800/1587513600

Sold for 17 keys

sale 8:

https://backpack.tf/profiles/76561198183382346#!/compare/1584144000/1584489600

https://backpack.tf/profiles/76561198057412106#!/compare/1584403200/1584489600

Sold for C9 Cappo(11) + 1 key

Total is 12 keys

sale 9:

https://backpack.tf/profiles/76561198057412106#!/compare/1584489600/1584576000

https://backpack.tf/profiles/76561198087448314#!/compare/1584576000/1584662400

Sold with negligible sweets for FBoA Sorcery + 5 keys

use there, few sales

https://bot.tf/stats/listings/4O9VQ5KG

B/O of 18 keys

sale 10:

https://backpack.tf/profiles/76561198087448314#!/compare/1584662400/1584835200

https://backpack.tf/profiles/76561198868134788#!/compare/1584748800/1584835200

Sold for HG HWAH + ~2 keys in sweets

use there, only usable sale.

https://bot.tf/stats/listings/4WX6E3G5

B/O of ~20 keys

sale 11:

https://backpack.tf/profiles/76561198868134788#!/compare/1585872000/1586044800

https://backpack.tf/profiles/76561198819747735#!/compare/1585958400/1586044800

Sold with ~1 key in sweets for Spelled Sniper

Sniper Mini:

https://backpack.tf/profiles/76561198868134788#!/compare/1586476800/1586649600

https://backpack.tf/profiles/76561198040380060#!/compare/1586044800/1586649600

Sold for 14 keys

Total is 13 keys

https://bot.tf/stats/listings/4O96W78P

B/O of 14 keys

sale 12:

https://backpack.tf/profiles/76561198819747735#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198069834979#!/compare/1582156800/1587513600

Untrace

sale 13:

https://backpack.tf/profiles/76561197962149741#!/compare/1582675200/1583366400

https://backpack.tf/profiles/76561198273736371#!/compare/1582848000/1582934400

Untrace

sale 14:

https://backpack.tf/profiles/76561198273736371#!/compare/1582934400/1582848000

https://backpack.tf/profiles/76561198558785620#!/compare/1582848000/1582934400

Sold for ~21 keys in sweets

sale 15:

https://backpack.tf/profiles/76561198558785620#!/compare/1583280000/1583366400

https://backpack.tf/profiles/76561198251805358#!/compare/1583280000/1583366400

Sold with 15 keys for ~37 keys in sweets

Total is 22 keys

https://bot.tf/stats/listings/YDL2N3JK

B/O of 35 keys

sale 16:

https://backpack.tf/profiles/76561198251805358#!/compare/1583712000/1583971200

https://backpack.tf/profiles/76561198074149928#!/compare/1586304000/1586390400

SCM

sale 17:

https://marketplace.tf/items/tf2/137;5;u11

$24.99 / $1.69 = 14.79 keys

$50 / $1.79 = 27.93 keys <--- https://backpack.tf/item/918554266

Total sales @:

11, 12, 13, 15, 17, 21, 22, 28 keys

buyers up to ~12 keys,

calling 12 low,

28 high,

Cashew's Part:

https://backpack.tf/item/8905275637 new seller at 15

https://backpack.tf/profiles/76561198035499016#!/compare/1592265600/1592352000

https://backpack.tf/profiles/76561198429062799#!/compare/1592179200/1592265600 12 keys

https://backpack.tf/profiles/76561198429062799#!/compare/1592265600/1592352000

https://backpack.tf/profiles/76561198180001574#!/compare/1592179200/1592265600 I think this is 9 keys + the stuff on the buyer's side other than the doctors sack. Would round to 12 keys. Not fully confident though

https://marketplace.tf/items/tf2/137;5;u11 $30 on May 25 = 16 keys

https://backpack.tf/suggestion/5ec5e0af9776010c0356eabe harmburg sale ended up not being used there, so there's another sale at 15.5

So sales are 11, 12, 12, 12, 13, 15, 16, 16, 17, 21, 22, 28 keys. Perhaps 13 - 17? Classifieds buyers at 12 and one unbumped seller at 15.