How did Empus obtain steel?

[A. G. Maisey]

Got lots of these papers David, both online stuff and hardcopy.

There's a good one done by an Aussie team, but I forget the details, it might be in hardcopy, not online, don't have time to look right now.

edit:- Land of Iron, Bulbeck & Caldwell

This is actually an archaeological investigation of settlement related to Luwu, but included in results is mention that iron smelting in Luwu might have begun as early as 600CE, and was certainly under way between 1480 and 1630, they hypothesise that most of the production was exported to Jawa and talk about use in keris & etc. In any case this work supports the fact that iron was imported into Jawa.

For anybody with an interest in this sort of thing, a good place to start is probably "The Bronze-Iron Age of Indonesia". van Heekeren