After much experimentation with slabs of casein from uk and some very old stock from Japan Conway Stewart re-launched in 1997. At that first exhibition the Foreign Office chose Conway Stewart as a supplier of gifts for Number 10 Downing Street and gifts from the government to visiting dignitaries. The first collections (58 series and Dinkies) were all made from casein with solid gold rings swaged on to each cap. Each slab of casein had to be cured for at least 3 months in drying room with just the right humidity. Returning the barrels to the drying room after each process in order to train the material to be 'round'. Each collection was limited to 500 pcs based on material and colour.