Hippolyte Camille LAMY (1875–1942), was an important French archetier (musical bow maker) of the early twentieth century also known as Lamy Fils.
Between 1905-1910, gradually personalized his model by widening the throat of the frogs and by slightly enlarging the style of the head.
His style is very close to his father's but as Mr. Raffin says "but slightly more generous".
[1] "Hippolyte Camille LAMY's bows are much sought after today by professional musicians world wide."
Filimonov Fine Violins Branded his bows « A. LAMY A PARIS »