Sorry, Mal, the pattern is meaningless. Can you explain please?

Chas

On Sat, 15 Sep 2018 at 01:25, Mal Rowemal.rowe@... [TramsDownUnder] < TramsDownUnder@...> wrote:

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> On 14/09/2018 11:30, Richard Youltressteleg@...

> [TramsDownUnder] wrote:

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> Am I the only dense one who has absolutely no idea what those yellow lines

> are supposed to represent?

>

> Did you perhaps miss looking at the second pic where the pattern is

> revealed?

>

> https://tdu.to/i/61755

>

> Mal Rowe in Perth

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>