From About Crochet: Tiny Birds Edging Free Chart For Filet Crochet
The chart above shows once through the design. The chart is then repeated, as many times as you need for your project. Working the design in this way allows you to decide upon the finished length as you go along.
Working the Chart in Filet Crochet
For a 4 dc mesh, total starting chain = 43 chains - that's a beginning
chain of 40, plus chain 3,
(which will count as first dc of first row), which makes a total starting chain of 43 chains. Begin by
working a double crochet in the 5th chain from the hook. Double crochet in each of next two chains (first solid mesh made).
Follow chart for placement of solid mesh and open mesh for
each row. For a refresher on how to do open and solid mesh, see
How to Filet Crochet Basics.
Chart is worked starting at the bottom right; work first row right to left. Second row is worked left to right. Continue alternating row directions in this same manner, following chart. In the example above, the chart was worked with white squares as open mesh and black squares as solid mesh.
Repeat the chart as many times as needed until you have the length you want.
Approximate finished sizes (for once through the chart that is shown above) in filet crochet
(once through the design, worked in 4 dc mesh):
With size 5 thread: (15 yards) and a size US 4 steel hook, finished size is about
3.6 inches x 2.9 inches.
With size 10 thread: (13 yards) and a size US 7 steel hook, finished size is about
3 inches x 2.2 inches.
With size 20 thread: (13 yards) and a size US 9 steel hook, finished size is about
2.9 inches x 2.2 inches.
With size 30 thread: (12 yards) and a size US 11 steel hook, finished size is about
2.7 inches x 2.1 inches.
With fingering/baby weight yarn: (29 yards) and a size US F hook, finished size is about
9.1 inches x 6.5 inches.
With sport weight yarn: (34 yards) and a size US G hook, finished size is about
10.4 inches x 7.4 inches.
With worsted weight yarn: (39 yards) and a size US I hook, finished size is about
11.7 inches x 8.3 inches.
Gauge:
With size 5 thread: 5 squares = 1.4 inches, 5 rows = 1.6 inches
With size 10 thread: 5 squares = 1.2 inches, 5 rows = 1.3 inches
With size 20 thread: 5 squares = 1.1 inches, 5 rows = 1.2 inches
With size 30 thread: 5 squares = 1 inch, 5 rows = 1.1 inches
With fingering/baby weight yarn: 5 squares = 3.5 inch, 5 rows = 3.6 inches
With sport weight yarn: 5 squares = 4 inch, 5 rows = 4.1 inches
With worsted weight yarn: 5 squares = 4.5 inch, 5 rows = 4.6 inches
There were no instructions for this chart in the 1915 book.
You may print out the new chart, images and instructions for your
own personal use only.
This Tiny Birds new chart is copyright 
2004
by Sandi Marshall, licensed to About.com, Inc.
Free for your own personal use only. If others would like to have the
pattern, please give them the URL of this page, or the URL
of my Free Charts Index so that they may
come here for themselves. Thank you.
The Antique 1915 chart was originally published in the book The Antonie Ehrlich Crochet Book Number Three in the year 1915 (now in the public domain). I recharted and have provided the instructions to go with the new chart (there were no instuctions whatsoever for this chart in the 1915 pattern book).
Just FYI - Per copyright laws, a person can't legally claim any copyright of their own for
recharting or rewriting instructions to another designer's pattern that is currently
under copyright protection, since variations of that copyrighted pattern are also protected
for the copyright holder. You can read for yourself how copyright law protects variations of
a copyrighted work, at the U.S. Government Copyright Office web site -
http://www.loc.gov/copyright.
If a pattern (copyright before the year 1923) has
fallen into the public domain, then new copyright can be applied to variations
of (also called derivitive works of) that public domain pattern.
How long does copyright last? See US Government Copyright Office web site at http://www.loc.gov/copyright. Under "Publications" heading, click on "Information Circulars": Circular 15 (Renewal of Copyrights), Circular 15a (Duration of Copyrights) and Circular 15t (Extension of Copyright Terms) will be helpful.
Copyright Myths Explained - http://www.templetons.com/brad/copymyths.html
URL of main page for this pattern is
http://crochet.about.com/library/weekly/aa011004.htm
URL of this printing page is http://crochet.about.com/library/n011004.htm