"Jules" is Jules Montigny

Horta, from Brussels, sells on 17 January 2017 a "Jules" Woman in a Field, estimated at 500 to 700 Euro.

The signature and style point to Jules Montigny (1840-1899), Belgian painter of the romanticized farming life. This work is somewhat unusual, as most of his works show farm animals in the field.

A similar drawing was sold last year at Delcampe (hence the ugly watermark across the image) for 80 Euro. %ontigny paintings got for 400 to 10,000 Euro, but this one is not among his large or most detailed ones. However, as it is less romantic, more naturalistic (in content) and impressionistic (in style) than many others, I can still see this one going for 1,000 Euro.