I've done a cursory search for Lisieux phone books and newspaper advertisements from 1925-35 for an Armurerie L'échauguette looking for phone numbers, address, or maybe an advertisement. Nothing turns up but the search engine is tilted towards genealogy and the entries for the Lisieux newspaper such that it was are very limited. Will continue to look.
https://archives.calvados.fr(probably will have something but can't get a response):
Beuh... moi, j'ai eu du succès. 😘😜.
3, place de la République.That was in the plein town centre. Today, nothing is left of it, only an ugly late 1960s / early 1970s building with a sandwich eastery in its ground floor, which one can look at via Google streetview.
The peculiar historical city was terribly destroyed in the night of 6th to 7th june 1944, by Allied aerial bombardment. On which:
https://fr.wikipedia.org/wiki/Bombardement_de_LisieuxSource for the shop location: an online archival listing of the holdings of the local historical society. A bit "deep web" underneath the Google search dragnet, as I must admit.
Je reste votre fidèle serviteur,
Carcano