"Messrs. Winkle & Wood (formerly of the pearl pottery, hanley) took the colonial pottery in 1889. in 1890... F.Winkle continued the colonial pottery as f. Winkle & co. (while Wood continued the pearl pottery). general earthenware was produced. marks incorporate the initials F W & co. 'Ltd' was added after 1910, and the firm continued to about 1931."