Glucochek blood glucose machine - old and never used. Bought by student when carrying out studies at University. Of interest to persons that collect items related to health. Has instructions on how to use it on the cover of the machine and are written in silver. Serial number is embossed in metal on the underside. It is encased in a hard beige pocket. Has been in possession at present owner for about 20 years. The Science Museum of London has one that is almost identical to the one being sold.