IB E WW
From J.C. Nicholls Irises catalog for 1928: “Intermediate. A clear creamy white with better texture than the intermediates usually have. Is very pretty, blooms 10 days ahead of the tall bearded, and is worthwhile on that account.”
AM RHS 1916.
Provenance: Image 3 from garden of L Munro 2014 ;acquired from Will Plotner Wildwood Gardens 2009.