Restoration of standard tiles for ridge pan and ridge cover tiles. Derived from a roof of pan and cover tiles like those of the standard ... Gorham P. Stevens ... O-266 O-266 Dirty Cartridge Paper Drafting Ink ... 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 ... 1949