A truly special piece! Rare moustache cup with second black Belleek mark, dating it from between 1891-1926. In excellent condition, it features the iconic Shamrock pattern against a pearl white basket weave texture background. Shamrock is one of the most popular of all the Belleek designs, and a must-have for any collector of Belleek fine porcelain. The interior of the cup is finished with the signature decorative cob lustre glaze, giving it an iridescent shimmer. To protect this unique glaze, we recommend avoiding the use of lemon juice in these cups, as it can cause damage.