This is a 9x7� rope held paper book is from Curtiss & Welch 1901. There are 30 tipped in photogravures of San Francisco, including the Palace Hotel, Market Street,Opium Den and the Ferry Building. The cover is water stained and fragile. An interesting piece of S.F. History. There are for unknown reason inscriptions throughout saying 1852.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.