Caption | A swinging-type beacon – a wooden pole with a hook, at the one end of which is a light basket and the other hand a counter-weight |
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Author | Alar Savelli |
Copyright |
Caption | A swinging-type beacon – a wooden pole with a hook, at the one end of which is a light basket and the other hand a counter-weight |
---|---|
Author | Alar Savelli |
Copyright |