Restoration of the standard tiles for ridge pan and ridge cover tiles, derived from a roof of pan and cover tiles like those of the Tile Standard ... G. P. Stevens ... PD 1754 ... 1949
Restoration of the standard tiles for ridge pan and ridge cover tiles, derived from a roof of pan and cover tiles like those of the Tile Standard ... G. P. Stevens ... PD 1754 AMS Horizontal (normal) ... 1949