Thank you Xergoyf, Crimson, and Shuffle!

3 years outdated.

SALES

Sold with 112 keys for Strange Cool Star Crossed War Paint (Minimal Wear)

https://backpack.tf/profiles/76561198389347359#!/compare/1592784000/1592870400

https://backpack.tf/profiles/76561198039834209#!/compare/1592697600/1592956800

Can be used over there.

Sold for 130 keys + Specialized Killstreak Batsaber (14.88 keys via mini)

https://backpack.tf/profiles/76561198165055074#!/compare/1587859200/1587945600

https://backpack.tf/profiles/76561198059109284#!/compare/1587859200/1587945600

130 + 14.88 = 144.88 rounding to 145 keys

Batsaber:

https://gyazo.com/68d300f62d265f0b3c6c7756ac493d83

Highest buyers range from 14.84 to 14.92 keys

Sold with 70 keys + Strange Specialized Killstreak Australium Scattergun for Searing Brotherhood

https://backpack.tf/profiles/76561198059109284#!/compare/1588204800/1588291200

https://backpack.tf/profiles/76561198039834209#!/compare/1588204800/1588291200

Using over there.

Sold for 80 keys

https://backpack.tf/profiles/76561198143750123#!/compare/1586563200/1586736000

https://backpack.tf/profiles/76561198165055074#!/compare/1586649600/1586736000

Sold for 33 keys + Collector's Gunboats (Open suggestion at 78 keys)

https://backpack.tf/profiles/76561198093501381#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198143750123#!/compare/1586217600/1586304000

78 + 33 = 111 keys rounding to 110 for neatness.

Collector's Gunboats:

https://backpack.tf/suggestion/5ef3c7f43edd291c6c10612b

Looks untrace

https://backpack.tf/profiles/76561198017911489#!/compare/1587081600/1587340800

https://backpack.tf/profiles/76561198251704884#!/compare/1587081600/1587168000

MARKETPLACE

Sold for 120 on April 18, 2020 (120/1.79 = 67.04 rounding to 67 keys)

https://marketplace.tf/items/tf2/30003;5;u9

CLASSIFIEDS

https://gyazo.com/b05a6037c523351dd58393ca51b89321

SUMMARY

1 @ 67 keys

1 @ 80 keys

1 @ 111 keys

1 @ 145 keys

CONCLUSION

Lowest sellers at 135, both at 1 month and 2 months. Excluding 145.

Excluding 67 since it's outdated now, and close to current buyers.

Taking 80-110 keys.