This mark was used by the Jules Henriot factory in Quimper, France known for making faience pottery. The style made by Henriot and that of other potteries from this area is generically referred to as "Quimper" by collectors.
Henriot used a number of different marks beginning in 1891, with "HR" being the first. From 1895-1922 the factory used the "HR Quimper" mark. The example shown above was used from about 1925-1968, according to the Old Quimper website. After 1968, artist initials and/or decoration numbers were printed under the mark.
