King's Norton was registered w/ ‘The Royal Horticultural Society Horticultural Database’, available at www.rhs.org.uk w/ a flowering date of before 1903. It is also listed in ADS database, but without any pictures...the lack of any photo there often indicates it isn't available any more. You might try companies that specialize in heirloom cultivars like Old House Gardens (though their more current catalogs don't list it).
