It's a sewing pattern for a top with 3 different sizes.  It has the pattern pieces overlaid on top of each other to save space.  You just make copies of the pieces you need.

Sue Powers-Hartman

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Thursday, July 22, 2010 5:21 PM
To: [log in to unmask]
Subject: Re: [TN] NTC: Friday quiz14

Hello Inge my friend, and also to the rest of my friends,

You were on time this time, and so am I. This will surely give something for 
everyone to ponder and guess at this Friday!

Here it is:

http://stevezeva.homestead.com/quiz14.jpg

My question is where in the world do you come up with this stuff? Anyways, 
one thing I notice is that every pattern seems to be repeated in three's 
with a slightly different dimension at all edges but one. I wonder why some 
are drawn in red, and others in blue? This is really interesting!

Steve

--------------------------------------------------
From: "Inge" <[log in to unmask]>
Sent: Thursday, July 22, 2010 3:07 PM
To: <[log in to unmask]>
Subject: [TN] NTC: Friday quiz14

> Dear friends,
>
> this time I try to be in time...and hopefully the famous Steve Gregory 
> too.
> Question is, what the heck is this?  Message from outer space? Description 
> of some neurologic tracks in the brain? Map for landing on Frankfurt am 
> Main?
> May best man win.
>
> Inge
>
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