December 1963: Italian actress Valentina Cortese smiles at actor Anthony Quinn relaxing in a yoga position in Rome.
Finding Mr. Iyengar. ~ Rama Jyoti Vernon
BKS Iyengar - About the balance of Sirsasana
BKS Iyengar showing differences in the inner ankles in Sirsasana and Sarvangasana
Other ways to say...
A yoga for flexibility sequence of stretches and recovery exercises. http://www.sensational-yoga-poses.com/yoga-for-flexibility.html#sequence
Utpluthi, Tom Rosenthal Photography
Finding Time To Meditate
Strong and Supple: Yoga Sequence For Spinal Flexibility. I'm pretty sure if you can do Nos. 11 and 12, spinal flexibility is not your problem.
Great yoga poses.