Calcimo: sanitary wall coating.
A trade catalogue from 1930 published by Murano Co. Inc., presenting Calcimo, a sanitary wall coating, to builders and decorators as a paint for interior walls. The picture shows flat rectangular colour swatches, each labelled with a number such as No. 135, with plain grey and slate tones that suggest a designer could use them as a quiet, matte palette reference for wall colour.
