Sale 1:

https://backpack.tf/profiles/76561198878658438#!/compare/1587600000/1587859200

https://backpack.tf/profiles/76561198050052801#!/compare/1587340800/1587686400

Sold with ~1.435 keys in sweets for ~4.19 keys in sweets

Total is 2.755 keys

sale 2:

https://backpack.tf/item/6254038067

https://backpack.tf/profiles/76561198204028017#!/compare/1587686400/1588723200

Not unusual till this compare

sale 3:

https://backpack.tf/item/6253046083

https://backpack.tf/profiles/76561198064588009#!/compare/1585094400/1585440000

not unusual before this

sale 4:

https://backpack.tf/profiles/76561198201933746#!/compare/1581552000/1584576000

https://backpack.tf/profiles/76561198335791307#!/compare/1589328000/1589414400

QS

sale 5:

https://backpack.tf/profiles/76561198148805183#!/compare/1566345600/1584144000

https://backpack.tf/profiles/76561198361600905#!/compare/1585872000/1586649600

Untrace

sale 6:

https://backpack.tf/profiles/76561198838394491#!/compare/1583539200/1583798400

https://backpack.tf/profiles/76561198050310748#!/compare/1583539200/1583625600

Untrace

Sale 7:

https://backpack.tf/profiles/76561198968140012#!/compare/1587513600/1587686400

https://backpack.tf/profiles/76561198050637807#!/compare/1583452800/1588723200

untrace

sale 8:

https://backpack.tf/profiles/76561198011321852#!/compare/1588118400/1588204800

https://backpack.tf/profiles/76561198810115048#!/compare/1587772800/1588118400

untrace

Sale 9:

https://backpack.tf/profiles/76561198810115048#!/compare/1588204800/1588464000

https://backpack.tf/profiles/76561198289709096#!/compare/1553558400/1589760000

untrace

sale 10:

https://backpack.tf/profiles/76561198335791307#!/compare/1589155200/1589241600

https://backpack.tf/profiles/76561198140065002#!/compare/1589155200/1589328000

Sold for 4 keys

sale 11:

https://backpack.tf/profiles/76561198140065002#!/compare/1589414400/1589673600

https://backpack.tf/profiles/76561198158238131#!/compare/1589673600/1589760000

Untrace

sale 12:

https://backpack.tf/profiles/76561198158238131#!/compare/1589760000/1589846400

https://backpack.tf/profiles/76561198880252021#!/compare/1589760000/1589846400

Untrace

sale 13:

https://backpack.tf/profiles/76561198179944875#!/compare/1583539200/1588291200

https://backpack.tf/profiles/76561198074625962#!/compare/1583452800/1583539200

Bulk

sale 14:

https://backpack.tf/profiles/76561198074625962#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198340634356#!/compare/1583452800/1583539200

Sold for ~3.08 keys

Sale 15:

https://marketplace.tf/items/tf2/1183;5;u3009

$5 / $1.69 = 2.96 keys <--- https://backpack.tf/item/7846650051

$5 / $1.69 = 2.96 keys <--- https://backpack.tf/item/7447869270

$5 / $1.67 = 2.99 keys <--- https://backpack.tf/item/6260976738

$5 / $1.68 = 2.98 keys

$4.80 / $1.68 = 2.86 keys

$5 / $1.68 = 2.98 keys

$5.84 / $1.68 = 3.48 keys

$5.5 / $1.69 = 3.25 keys

$5.9 / $1.69 = 3.49 keys

$6.5 / $1.79 = 3.63 keys

Bot.tf:

https://bot.tf/stats/item?def=1183&q=5&ef=Silver%20Cyclone&craft=1&aus=0&ks=0

2 @ 3 keys

1 @ 4 keys

2 @ ~3.10 keys

1 @ 2.62 keys,

Total sales @:

2.6

2.75

2.85

2.95 (x2)

3 (x5)

3.1 (x3)

3.25

3.5 (x2)

3.65

4 (x2)

2 high buyers for 3, 3.05 keys,

buyers more commonly at ~2.6 keys,

near month unsold at ~3.25 keys,

calling 2.85 low,

3.65 high,

taking 2.95 - 3.5 keys, conserves close to unsold.