Spéranza Calo-Séailles

Spéranza Calo-Séailles or Elpís Kalogeropoúlou in Greek; Ελπίς Καλογεροπούλου (May 17, 1885 – February 18, 1949) was a Greek painter, inventor and opera singer. She is known as a singer and artist, but she invented a type of decorative concrete which went under the name Lap.

Spéranza Calo-Séailles
December 1919 from "Monde Musical"
Born
Elpís Kalogeropoúlou

May 17, 1885
Constantinople
DiedFebruary 18, 1949
Paris
NationalityGreece
OccupationMezzo-soprano
Known forinventing a type of cement

Life
1913 Publicity for Spéranza Calo-Séailles
by Spéranza Calo-Séailles
The Lap Society of 1,000,000 francs

Calo-Séailles was born in Constantinople in 1885 where her name was Elpís Kalogeropoúlou. She first attracted attention as a mezzo-soprano and she acquired a patron who was willing to support her development.

In 1923 she invented a type of decorative concrete and a patent was applied for in June 1923. The new material which went under the name Lap. Her invention was developed by her and her husband who was a Sorbonne Professor.[1]

In 1929 her Lap materials was used in the construction and decoration of the Halles de Boulongrin in Rheims. They provided a challenge when the building was renovated in 2012 and the panels were replaced with GR[1]

In 1930 she was creating work using Lap with Tsuguharu Foujita.[2] Foujita made her portrait and also created several works in Lap at the company's base in Antony.[3]

Calo-Séailles died in Paris in 1949.

References
  1. Croft, Catherine; Macdonald, Susan (2019-01-15). Concrete: Case Studies in Conservation Practice. Getty Publications. p. 42. ISBN 978-1-60606-576-1.
  2. "Bonhams : Léonard Tsuguharu Foujita and Speranza Calo-Séailles Cat and Kittens circa 1930 Lap panel signed F 36.5 by 56.5 cm. 14 3/8 by 22 1/4 in". www.bonhams.com. Retrieved 2020-01-05.
  3. Buisson, Sylvie; Buisson, Dominique (1987). Foujita (in French). www.acr-edition.com. ISBN 978-2-86770-145-0.
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