This is a question that already brothers me for a while. Some stamps on the bottom of MM corn pipes are just black ink, some are yellow stickers and some are brown and white? Anyone knows why? Thanks :wink:
Why MM has so many different stamps?
- Thread starter gamxiaoyuan
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Black Ink printed on the bottom indicates a wood plug to help protect against burnout. The stickers are on models without the hardwood plug.
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