div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: 3nh8ve1wadfit70fb1jscxhz-wpenginenetdna-sslcomfloor is of Guastavino tile construc- tion The second floor is a combina- tion of steel truss and concrete also constructed by src=https:reader033vdocumentsusreader033viewer20220416095e365948377d6171727cc969html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv