Class ID	Instance ID	Name	Lowdown
5175078394	5175075346	Engineer's Cap	Quality: Unique, Marketable: No
5175078394	5781996496	Engineer's Cap	Quality: Unique, Marketable: No
5301455003	19310848	Engineer's Cap	Quality: Unique, Marketable: No
6340688187	1364203330	Engineer's Cap	Quality: Unique, Uncraftable: Yes, Marketable: No