The Diablo 2 Wiki
The Diablo 2 Wiki archive is available for anyone looking for information on Diablo 2. All information here is pre-D2R but contains a lot of useful information that is still relevant. Updated sections for new D2R features can be found on the PureDiablo Diablo 2 section

D1 Helms

From Diablo 2 Wiki

The helm you wear does nothing to change the look of your character. That is determined entirely by the body armor.

ImageTypeArmor ClassDurabilityRequirementsPriceqlvl
D1-h-cap.gifCap1 - 315--151
D1-h-skullcap.gifSkull Cap2 - 420--254
D1-h-helm.gifHelm4 - 63025 Str408
D1-h-full-helm.gifFull Helm6 - 83535 Str9012
D1-h-crown.gifCrown8 - 1240--20016
D1-h-great-helm.gifGreat Helm10 - 156050 Str40020