AThat looks like piping to me, also looks like a henna design/pattern.
AYep it's very intricate, I also do henna designs so the pattern looks familiar. You should try it, it's fun to do although tiring!!
not exact--but you (i) could get there from here:
http://www.globalsugarart.com/jacobean-style-floral-applique-cutters-by-jem-cutters-p-18908.html
and just fill in all the spaces in between with dots and scrolls etc.
this diagram gives the dimensions:
http://www.sugaredproductions.com/shop/search.php?search_query=jacobean&x=0&y=0
in fact--if you go here and click open the thumbnail on the right--it gets you closer & closer
http://www.sugaredproductions.com/shop/products.php?product=Jacobean-Lace-Set
when you overpipe you can pull the design any which way you want--kwim
Googled "henna stencils for cakes" and yielded the following:
There's got to be a link in there that will help.
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