Regarding signatures: It is my understanding that painting photographs was most usually piece-rate work parceled out by photography studios to individuals who worked in their homes. Considered a product of the studio, the work bore only the name of the studio and not the photographer or the enhancer.

I also have the impression that the work was referred to as tinting rather than painting.

I discovered that this work continues today but more as an artistic endeavor rather than as a commodity.

For those not familiar with this type of work, a Google search for "Oil tinted photographs" will lead to a site with numerous examples. -Jon Halsey