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Lunar and Tide Calendar Postcard

Lunar and Tide Calendar Postcard

$ 6.00

This postcard is a dual-use calendar. On one side you will find a lunar calendar that allows you to find out what was, or what will be the phase of the moon on a certain date. It is based on the epact (the age of the moon). On the other side a calendar of tides, with which you can find out what time it will produce both high and low waters of a port.

Here we present it as a postcard. It is functional, with rotating disc and beautifully decorated.


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