MP sales:

https://marketplace.tf/items/tf2/404;14

$6.6 / $1.79 = 3.69 keys

$11.11 / $1.89 = 5.88 keys

$11.11 / $1.89 = 5.88 keys

$13 / $1.98 = 6.57 keys

$17 / $1.98 = 8.59 keys

SCM sales:

https://steamcommunity.com/market/listings/440/Collector%27s%20Persian%20Persuader

may 30th

£12.82 / £1.93 = 6.64 keys

keys: https://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key

Items:

https://backpack.tf/item/6663368262 - MP sale

bulk

https://backpack.tf/profiles/76561198012204846#!/compare/1588118400/1588723200

https://backpack.tf/profiles/76561198125247757#!/compare/1588118400/1588204800

above sale then MP sale - https://backpack.tf/item/2663950095

bp purchase

https://backpack.tf/profiles/76561198077454234#!/compare/1588723200/1590019200

https://backpack.tf/profiles/76561197966756586#!/compare/1589932800/1590019200

untrace

https://backpack.tf/profiles/76561197966756586#!/compare/1591401600/1591488000

https://backpack.tf/profiles/76561198328157083#!/compare/1575849600/1592438400

=================================================================

Sales:

3.7, 5.9, 5.9, 6.6, 6.6, 8.6

buyers at 4.5 keys: https://imgur.com/a/mPtmKIQ