“Photo 51” is a tribute to Rosalind Franklin, whose X-ray diffraction image of DNA has played a significant role in the discovery of the DNA double helix model by Francis Crick, James Watson and Maurice Wilkins.

What an extraordinary time it must have been at King’s College, in London, when the three dimensional structure of the DNA was not quite discovered yet.

In this first quarter of 1953, the double helix was still to be discovered, but there was Photo 51…

Sizing
To fit foot circumference (measured around ball of foot):
Small ― 20 cm (8 in),
Medium ― 23 cm (9 in),
Large ― 25.5 cm(10 in)

Yarn requirement
The Knitting Goddess British wool and nylon 4ply (1 x 100g, 400 m / 437 yds) shown in “Twisting Round”
or The Knitting Goddess Britsock (1 x 100g, 400 m / 437 yds)

Needles and Notions

• 2.25 mm (US 1) needles (circ. or DPNs) - Or size required to achieve gauge. (“main needles”)
• 2.75 mm (US 3) needles for tubular cast-on
• 2.00 mm (US 0) needles for heel flap
• Cable needle
• Darning needle
• Stitch markers
• Waste Yarn and Crochet Hook

Gauge
36 sts and 52 rows / 10cm (4 in) measured over stockinette in the round with “main needles”

13-Page Pattern includes:
Detailed charts for leg, heel and foot sections.
Complete written instructions (including written directions for Charts).
Detailed directions on how to work the arch-shaping.
Instructions for alternative gusset, foot and toe for those who dislike arch-shaping.
Photo-Tutorial of Shadow Wrap technique.

More detailed tutorial on the Shadow Wrap method can be found on the designer’s blog.