LONDON (February 27): THE Economist writes: 'The sharp fall in gold coin prices in Paris may be partly due to offering of counterfeit sovereigns and eagles. 'It is believed that the British and United States gold coins are being manufactured in two countries in western Europe. 'They are full weight coins, of the correct fineness and are being manufactured from dies which are exact replicas of the dies used by the British and United States mints. The manufacture of these coins provides an easy way of securing, at the expense of hoarders, nearly twice the current official price for gold. 'The manufacture and traffic of these coins could hardly take place without the tacit approval of the monetary authorities of the countries concerned. 'The toleration of these activities hardly conforms to the spirit of E.R.P.'