Reflecting-glass
A small mirror confined within a frame, having a small handle. These glasses are supplied by the foundry supply dealers, and are extremely useful for directing light down into the deep cavities of a mould.
Twelve hundred entries from the golden age of cast metal — how bells are founded, why brass is not bronze, what a cupola melts and a core withstands — by Simpson Bolland, the trade's great teacher.
A small mirror confined within a frame, having a small handle. These glasses are supplied by the foundry supply dealers, and are extremely useful for directing light down into the deep cavities of a mould.