Mason's Patent Ironstone China 'Vista' Dessert Plate or Saucer

This item is the underside of a porcelain or ironstone dessert plate or saucer, distinguished by its off-white or cream-colored body. The most prominent feature is the manufacturer's mark, centrally located in a dark red or burgundy color. The mark features a crown motif above the word 'MASONS' in an arch. Below the crown, it reads 'PATENT IRONSTONE CHINA'. Further down, 'VISTA' is printed, indicating the pattern name, followed by 'ENGLAND', signifying the country of origin. The mark also includes additional text that appears to state 'GUARANTEED PERMANENT ACID RESISTING COLOURS', highlighting the durability and quality of the decorative finish. The material exhibits a faint crazing pattern across its surface, which is a network of fine cracks in the glaze, common in older ceramics and indicative of its age. The edge of the plate/saucer is subtly scalloped or fluted, adding a decorative element. Although the top surface is not visible, the bottom's design and material suggest it could be part of a tea set or dinnerware, specifically a saucer or a small dessert plate. The quality of the mark and the claim of 'acid resisting colours' suggest a mid-20th century or earlier manufacturing period, aligning with traditional English pottery craftsmanship.