Neat idea to place a metal cage on top of the tender to allows more wood to be loaded on the tender.  I've never seen this method used before.  Thanks for sharing.
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Jeff,
Many thanks you for your comment. I have seen a similar tender on some steam locomotives used on the sugar railways in Indonesia (Java). There, the locomotives burn compressed blocks of bagasse which is a residue of sugar cane. 
Kind regards, Daniel
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