L. van Leeuwen and Son, the Netherlands
Year Registered: 1931
Bloemlust
Percival D. Williams, England
Year Registered: 1927
Crocus
Perianth segments very broadly ovate, blunt, only very slightly mucronate, pure white, spreading, concave at apex, of great substance, overlapping half; the inner segments more narrowly ovate, a little inflexed; corona clear deep lemon yellow, with mouth expanded and ribbed, even, rim widely rolled, deeply notched and crenate.
There are no photos of "Sebastopol" in Daffseek.