Month 1: https://gladiator.tf/sales?item=Pumpkin%20Party%20A%20Handsome%20Handy%20Thing&at=2022-06-21T21:34:16.821Z

Buys:

1 @ 11 keys 32.66 ref ~11 keys

1 @ 11 keys 37.88 ref ~12 keys

1 @ 11 keys 41.44 ref ~12 keys

Month 2: https://gladiator.tf/sales?item=Pumpkin%20Party%20A%20Handsome%20Handy%20Thing&at=2022-05-21T21:34:16.821Z

Sales:

1 @ 12 keys

Month 3: https://gladiator.tf/sales?item=Pumpkin%20Party%20A%20Handsome%20Handy%20Thing&at=2022-04-21T21:34:16.821Z

Sales:

1 @ 13 keys 15 ref ~13 keys

Buys:

1 @ 10 keys 7.66 ref ~10 keys

~~

no sales on MP.tf or Mannco

https://gladiator.tf/time-machine?item=Pumpkin%20Party%20A%20Handsome%20Handy%20Thing&at=2022-06-21T21:34:10.789Z

Sellers at 11.74-12 keys, buyers at 11.72 keys. Both round to 12

Given the large quantity of these sellers and buyers, gonna exclude 10, 11 and 13 respectively and go with 12 flat