Registration Statement No. 333-206013

Pricing Supplement No. 2773D; Rule 424(b)(2)

Product supplement D dated April 28, 2016: http://www.sec.gov/Archives/edgar/data/1159508/000095010316012938/dp65301_424b2-ipsd.htm 

Prospectus supplement dated July 31, 2015: http://www.sec.gov/Archives/edgar/data/1159508/000095010315006048/crt-dp58161_424b2.pdf

Prospectus dated April 27, 2016: http:s//www.sec.gov/Archives/edgar/data/1159508/000119312516559607/d181910d424b21.pdf

Delaware Trust Company, which acquired the corporate trust business of Law Debenture Trust Company of New York, the predecessor trustee, is the trustee of the notes. When you read the accompanying prospectus supplement, please note that all references in such supplement to the prospectus dated July 31, 2015, or to any sections therein, should refer instead to the accompanying prospectus dated April 27, 2016 or to the corresponding sections of such prospectus, as applicable.

January     , 2017