Here is the photo to which I think you're referring, of the building when it housed Pochelon's florist establishment. The shop was named L. Bemb Floral Co., after his mother, Louise Bemb, who started the business as a flower stall in the old Central Market in Cadillac Square after her immigration from Germany.
http://historicdetroit.org/galleries/pochelon-building-old-photos/
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