They're not even mentioned in "The Art of Perfume" but it is in the Blangy valley one of 4 surviving Flaconneries where there used to be 30. I saw the local glass museum there, it is (you guessed) stuffed full of perfume bottles and decommissioned perfume bottle making machines. They're a small company:
WALTERSPERGER [VERRERIE]
Headquarters & Plant: BP 42, 5 Avenue de la Gare, F-76340 Blangy-sur-Bresle, France
Company Officers William Pariche: President, Alain Malivoir: Commercial Director
Annual turnover US$ 4 million
Turnover from glass: 100%
Tot. number of employees: 48
Company founded: 1916
Nominal capital:US$ 130,000
Number of furnaces: 2
Tons/day (total): 3
Bank Societé Générale Dieppe
Export: yes
Company production Bottles and containers
Cosmetics, Perfume, Spirits; From 3 ml. up to 3,000 ml. Narrow neck Wide mouth
(Primary glass manufacturer)
Colours:Antique, Black, Blue, Brown, Dark green, Half green, Half white, Light green, Opal, White, Yellow
Production techniques:Semi-automatic, Moulds in house