The Hydrangeas of Brittany — Brittany in Colour, series 1-5150

Description

Postcard illustrating four varieties of hydrangeas (pink, blue, white, purple) in Brittany, with printed text explaining that their colour depends on the acidity of the soil. Reverse: handwritten letter dated 23 March, sent from the Pink Granite Coast, mentioning the preparation of a series of photos and family issues in Azerbaijan.