Credit to Lemons and for adding more sales and Xergoyf for fixing the range

2 year old price, let's update

Bot.tf sales: https://imgur.com/94TrEyV

Sales:

Past 90 days

1 @ 2 keys, 35.00 ref 07/07/2020, 19:21:34, 2.75 keys

1 @ 2 keys, 35.00 ref 07/07/2020, 19:24:25, 2.75 keys

1 @ 2 keys, 40.00 ref 01/08/2020, 20:27:01, 2.85 keys

Buys:

Past 30 days

1 @ 2 keys, 24.00 ref 01/09/2020, 05:24:53, 2.51 keys ~2.5

Past 90 days

1 @ 2 keys, 18.00 ref 24/06/2020, 22:06:06, 2.38 keys ~2.4

1 @ 2 keys, 18.00 ref 03/07/2020, 19:13:58, 2.38 keys ~2.4

1 @ 2 keys, 24.00 ref 01/09/2020, 05:24:53, 2.51 keys ~2.5

Marketplace.tf sales: https://marketplace.tf/items/tf2/1112;5;u3009

July 23 2020: $6.12 (key=$2.00, 3.06 keys) ~3.05

July 5 2020: $425 (key=$2.99, 2.14 keys) ~2.15

Sellers at 2.88 counter 3.05

Buyers at 2.68 counters 2.15, 2.4 and 2.5

Lemon's sales:

https://backpack.tf/profiles/76561198154343696#!/compare/1599004800/1599091200 - Untrace

https://backpack.tf/profiles/76561199001400167#!/compare/1596412800/1596585600 - Untrace

https://backpack.tf/profiles/76561198173431375#!/compare/1599091200/1599609600 - Untrace

https://backpack.tf/profiles/76561197963500354#!/compare/1596931200/1597017600 https://backpack.tf/profiles/76561198082348379#!/compare/1597190400/1597708800 - Untrace

https://backpack.tf/profiles/76561198175616351#!/compare/1596844800/1597276800 https://backpack.tf/profiles/76561197963500354#!/compare/1596758400/1596844800 - Buy order

https://backpack.tf/profiles/76561198109583337#!/compare/1596153600/1596240000 - Untrace

https://backpack.tf/profiles/76561198109583337#!/compare/1594598400/1594684800 - Bulk

https://backpack.tf/profiles/76561198051166015#!/compare/1593734400/1594166400 https://backpack.tf/profiles/76561198358296372#!/compare/1593648000/1593734400 - Only 18 ref match

https://backpack.tf/profiles/76561199011488010#!/compare/1598486400/1598918400 - Untrace

https://backpack.tf/profiles/76561198163297474#!/compare/1598054400/1599177600 https://backpack.tf/profiles/76561198325595749#!/compare/1597968000/1598054400 - Bulk

https://backpack.tf/profiles/76561198973950684#!/compare/1598659200/1598918400 - Sold with 2 keys for a Midnight Whirlwind Taunt: Zoomin' Broom, seems very high

https://backpack.tf/item/2807416114 they all look like alts (except the top sale, that's the broom sale) - https://backpack.tf/item/2748679456 helps confirm alts

https://backpack.tf/profiles/76561199008475806#!/compare/1596758400/1597190400 - Bulk

https://backpack.tf/profiles/76561198880361166#!/compare/1596758400/1596931200 - Bulk

https://backpack.tf/profiles/76561197999390170#!/compare/1594598400/1596067200 - Unusualifier

Xergoyf Pointed this out:

https://bot.tf/stats/listings/Y5ZK5DJ7 - keys were 56 1/8 = ~.714 = 2.7

https://bot.tf/stats/listings/Y9QPVP0D - keys were 58 on 7/7 = ~.603 = 2.6

Going with 2.6-2.7