John Ditchfield for Glasform; an iridescent petroleum frog form paperweight decorated with lily pads, etched to base GLASFORM and bearing label, 16cms, another frog form paperweight in iridescent petroleum decorated with speckles, etched to base J. Ditchfield GLASFORM and bearing label, 9cms and a further frog form paperweight in clear blue with a speckled dark blue centre, also etched to base and bearing label, 10cms (3)