Montefortino 'A'

• Bronze helmet - skull worked from one piece of metal. Form tends to be bulbous and drawn up at the apex to terminate in a hemispherical knob generally decorated with a scale pattern. In some instances the knob is undecorated and inclined to be conical with a flattened top.
• The lower rim is drawn into a short, sloping neck guard at the back and the edge is 'knocked-back' and given a half-round section.
• The border is generally given a cable finish. Above it, across the brow and on the neck guard are filed horizontal lines and flutings.

Montefortino 'B'

• Similar to Type A, except that the decoration is simplified or completely omitted.
• Crest knob is generally of the plain conical type with a flat top.
• The lower rim is a simple sloping flange, which deepens towards the back to form the neck guard. One or two rivets used to secure the cheek guards.

Montefortino 'C'

• The skulls are less bulbous and have a tendency towards being conical.
• Crest knobs are small and plain, some still rounded, some conical and others conical with a flattened top. 
• The lower rim, though thickened is much reduced in size and the neck guard tends to be broader and flatter than in other types.

Montefortino 'D'

• Crest knobs are separate castings, soldered to the bowls. 
• A strong lip is worked in the lower rim and continues on the underside of the neck guard to a lesser degree.

Montefortino 'E'

• More fully developed than the Type D, having the broad flattened neck guards and reinforcing peaks of their Coolus type contemporaries.
• They retain a hollow crest knob that appears to be made in one with the bowl. The line of the neck where it rises from the centre of the crown does not always display the continuous flow of lines seen on earlier examples.

Montefortino F

• A bulbous skull with the lead-filled and pierced crest knob forged in one with the apex.
• The turned out flange at the lower edge can be traced back to Montefortino helmets of the second to first centuries BC. [This helmet was never fitted with a brow reinforcement.] 
• The cheek piece has no raised detail such as are normally found on Gallic examples, nor is there a throat flange.