The Ancient Pandaren Tea Pot does not count towards the achievement, and also has phasing issues.
This page contains a user created list of items, found in the comments, that currently count towards the achievement. I would suggest creating a guide that takes you to the locations for all of these items as they are not always there.
This page contains a user created list of items, found in the comments, that currently count towards the achievement. I would suggest creating a guide that takes you to the locations for all of these items as they are not always there.
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