Isaac Grotz is listed as a clockmaker and as a blacksmith in a number of horological references. He was born in and worked in Easton, Pennsylvania. It is thought that he cast his own brass components because he is listed as having his own forge. It is also recorded the he sold parts and supplies to other clockmakers in the region. Isaac Groetz died of pneumonia in the winter of 1835. He caught a cold while setting out some clocks.

This nicely grained cherry cased tall clock features several interesting architectural details as well excellent narrow proportions. The cherry selected for the construction of this case is nicely figured and is highlighted by the wonderful shellac based finish. The case stands on four turned feet. A decorative apron is fitted into the space between them that features a double drop. A large inset panel is located in the front section of the base. The waist is very long and narrow. The sides are canted and help reenforce the sleekness of the waist. The center of this section is fitted with a long narrow door. This door features a shell carving in the top section. This unusual detail is well executed. The bonnet is a swan’s neck form. The three finial plinths are fluted and support three brass finials. Fully turned and nicely shaped bonnet columns flank the arched glazed door. This door is fitted with glass and opens to a colorfully painted iron dial. The dial was painted in Philadelphia by William Jones. It features a moon phase calendar in the arch. This dial is signed by the Maker in the upper portion of the arch. This is an unusual location for a signature. The four spandrel areas of this dial feature a combination of floral and geometric designs. These are colorfully decorated. The movement is brass, designed to run eight days in duration and will strike the hour on a cast iron bell. It is of good quality. This clock was made circa 1820 and stands approximately 8 feet 1 inches tall.