Two alternatives section of a domed pavilion with vaulted ceiling with Ionic pilasters and recessed alcove with vase and console table, one with floor plan ( verso )

French School, 19th Century Two alternatives section of a domed pavilion with vaulted ceiling with Ionic pilasters and recessed alcove with vase and console table, one with floor plan (verso) pencil, pen and black ink and grey, green and pink wash on paper 10 ½ x 15 ½ in. (26.7 x 39.4 cm.); 9 ½ x 13.1./2 in. (24 x 34.3 cm.); two in one mount