Mushrow Astrolabes

On November 26, 1981, Wayne Mushrow discovered a very rare and working Portuguese mariner’s astrolabe on a shipwreck just off the coast of Isle aux Morts. The year “1628” and “Y. Dyas” are stamped on the astrolabe, indicating that it was likely made by known astrolabe maker, Joas Dyas.

This astrolabe (which was more than 350 years old when found) was a discovery of great historical importance. It was the only one of its kind ever found in Canada, and one of only four of it’s kind found in the world. It is called the “Mushrow Astrolade” in Wayne Mushrow’s honour.

In 1983, at the same site, Mushrow found a French mariner’s astrolabe stamped with the year “1617” and the name “Adrian Holland”. It is unknown whether he was the maker or owner of the astrolabe.

The Mushrow Astrolabes are the centerpiece of The Gulf Museum in Port Aux Basques, Newfoundland. This rare and significant find is on display during the summer months.

Link: About The Astrolabe – Wikipedia Encyclopedia
Link: Mushrow Astrolabe Historical Discovery
Link: News Release 2001 – Astrolabe Discovery

For more information, please visit us at the Isle aux Morts Town Office – or contact us by phone at (709) 698-3441 or via e-mail at

Astrolabe Monument in Channel-Port aux Basques, NL

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