Materials suggested in the original pattern: 120 g art-silk and steel needles size 6/0 and 8/0 for an approx. diam. of 95 cm/35½“. The heavier needle to be used from round 87. (Old German needle sizes)

Error: Row 117 is missing a YO - obvious as you are knitting, and the pattern does not work as written if you leave out the YO.