Encrusting or plating monti?

[TIDE09]

Received these 4 Monti From WWC as part of mystery pack. Are these encrusting or plating?

 

[ekandler]

Caps are usually the only plating montis. So the second is probably the only plating, rest seem to be encrusting. You can even see it on the plug, how the 2nd has a raised rim while the others grew down onto the plug.