Sales

Sale 1: Sold for 15 keys

https://backpack.tf/profiles/76561198192602363#!/compare/1602892800/1602979200

https://backpack.tf/profiles/76561198429767246#!/compare/1602979200/1600905600

Buyout was 17, but there were multiple sellers, 1 at 16.

https://bot.tf/stats/listings/Y3000ER0

Sale 2: Quicksold for 14 keys

https://backpack.tf/profiles/76561198195933333#!/compare/1598918400/1599004800

https://backpack.tf/profiles/76561198032176942#!/compare/1598832000/1599004800

Buyout was 14 keys

https://bot.tf/stats/listings/YD16RJJK

Sale 3: Sold to a buyorder

https://backpack.tf/profiles/76561198169363163#!/compare/1598918400/1601769600

https://backpack.tf/profiles/76561198195933333#!/compare/1598832000/1598918400

Buyorder was 13 keys~

https://bot.tf/stats/listings/4O98PQRG

Sale 4: Sold for 14 keys

https://backpack.tf/profiles/76561198985910282#!/compare/1596499200/1596585600

https://backpack.tf/profiles/76561198345481242#!/compare/1588464000/1598918400

Sale 5: Sold for 14 keys

https://backpack.tf/profiles/76561198002757046#!/compare/1596758400/1596844800

https://backpack.tf/profiles/76561198090314229#!/compare/1596844800/1597190400

https://bot.tf/stats/listings/4J9ODK77

Sale 6: Traced 1 key

https://backpack.tf/profiles/76561198080179568#!/compare/1602892800/1602979200

https://backpack.tf/profiles/76561198183894834#!/compare/1602201600/1603065600

Buyout was 18, and even if it was 18, id consider that high here, there were 3 sellers at less during that time.

https://bot.tf/stats/listings/Y9QE0L3D

Sale 7: Untraceable

https://backpack.tf/profiles/76561198005024430#!/compare/1596412800/1596844800

https://backpack.tf/profiles/76561198130943883#!/compare/1596326400/1597104000

Sale 8: Untraceable

https://backpack.tf/profiles/76561198388704687#!/compare/1595376000/1596240000

https://backpack.tf/profiles/76561198005024430#!/compare/1556409600/1596153600

Other exchanges, such as to marketplace

https://backpack.tf/item/7744819794

Marketplace sales

https://marketplace.tf/items/tf2/31025;5;u8

Nothing recent.

Current Classifieds

https://backpack.tf/classifieds?item=Climbing%20Commander&quality=5&tradable=1&craftable=1&australium=-1&particle=8&killstreak_tier=0

https://gyazo.com/a29d3d2f9acd0f5db0eaaa1f07dbc7e9

Summary

Sales at 13, 14, 14, 14, 15, and possibly 18?

Conclusion

13 is under buyers, excluding it as a low outlier.

While 14 is also low, 3 sales at 14 shows it's common enough to be the low end here. 18 is likely a high outlier here, as multiple sellers at less during the time.

Going with 14-15 here.

Take it easy.