These days, Dutch bulbs are mostly grown and sold by huge companies, so it nice to be reminded of the pre-internet, small-scale, personal business model. This is 

A Dutch Bulb Merchant (1943, Russell-Cotes Art Gallery) by Minnie Walters Anson (1875-1959) who collaborated with Gertrude Jeykyll, and provided illustrations for gardening books such as Colour in The Garden (1934) by M.E. Stebbing