|Monthly Tech-Tip |
Lower right: Pre-2000. Almost everything I make has code numbers written beside my signature, these index into our group account at insight-live.com where all details are recorded (since the 1980s). Sometimes the numbers simply are the name of a production clay that we are making (e.g. top right is M325), that is part of our standard QC. Often the numbers are for tests being done (e.g. the "L4131"). Sometimes a code number spreads across two lines (e.g. lower left is actually "P6842", that is also a production run). The style of the fluted foot ring (for better draining in the dishwasher) is a tell-tale sign the mug was made by me.
Tony Hansen is the author of Digitalfire Insight, Digitalfire Reference Library and Insight-Live.com, he is a long-time potter, ceramic lab-technician and body and glaze developer.