Correct (A) and incorrect (B) overlapping of curved terracotta pan tiles ... G. P. Stevens ... PD 1752-a PD 1752-b Horizontal (normal) ... 1949
Correct (A) and incorrect (B) overlapping of curved terracotta pan tiles ... G. P. Stevens ... PD 1752-a PD 1752-b AMS Horizontal (normal) ... 1949
