single intact and well-maintained mid-1880's antique american chicago three-flat stained glass window likely executed by the belcher glass company, in newark, nj. the diminutive leaded glass window retains the original wood frame with worn painted surface. the vibrant square-shaped leaded glass window contains multiple shades of yellow triangular glass, fitted together in a non-figurative mosaic pattern. the belcher glass company was listed in business as early as 1825 in newark, new jersey. henry belcher's grandson later innovated the company by obtaining patents during the 1880's for a mosaic process that reduced costs, and refined the finished product. by 1886 the firm produced hand colored sales catalogues of designs, includiing mosaics with floral themes, house numbers, and with neoclassical elements popular during the victorian era. the actual fabrication process consisted of taking small triangular pieces of glass laid in a pattern, and covering them with a sheet of gummed, or adhesive covered asbestos. the asbestos sheet was turned over and a second sheet applied to form a sandwich. once a framework was built around this, molten metal could be poured between the sheets of asbestos forming an adhesive line between the pieces of glass. other patents indicated the process became even more elaborate. the belcher glass company went out of business because the style became less popular and becausee of the difficulty in repair. mr. belcher moved to chicago after the company closed to work with the luxfer prism company, the manufacturer of pressed glass tiles used in store fronts. some of the partners were clients of frank lloyd wright and eventually the architect designed several patterns for luxfer. measures 10 1/2 x 10 1/2 inches.