Background

CERAM was approached by Trading Standards Officers in relation to alleged removal of 'seconds' marks from highly collectable tableware. A large number of items had been seized by The Trading Standards Authority from premises but also as mail order purchased samples from the individual concerned. It was alleged that after purchasing 'seconds', the individual concerned removed the 'seconds' mark and the items were sold on (unknown to the manufacturer) as best quality items.

Methodology & Results

Due to the value of the items seized, it was imperative that the pieces were not destroyed or damaged. Samples were examined microscopically to look for evidence of the seconds mark applied. A number of 'real' seconds were provided for comparison. It was possible to identify the point at which the metal marked pen had been applied to the underside of the glaze in that a series of fine microcracks were induced in the glaze. Whilst the metal had been removed chemically, these microcracks remained visible to the microscope.

With subsequent advances in scanning electron microscopes, it would now be possible to examine some of the smaller plates in situ in an electron microscope without damage or electrical coating of the sample. This would enable more detailed examination of the crack pattern and any residual metal invisible to the naked eye, providing even greater certainty of results.

Conclusion

The individual concerned was convicted on the evidence. The manufacturer concerned modified the way in which 'seconds' were marked to reduce the risk of the events recurring.