A method is described for use with a server serving requested records among a multiplicity of records, and with a predetermined list of record identifiers, and with a first file containing information about records corresponding to the record identifiers. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water. The present construction machine provides the information by monitor display on a monitor screen 26 that is provided in an operator’s cabin 11. Another embodiment applies cavity walls to singulated glass covers, which are then attached to image sensors which may be formed on a single wafer.