Staffordshire figurine of sleeping couple - spill vase

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I believe this to be a Staffordshire porcelain flat-back figurine of a sleeping couple during harvest time. I know nothing at all about Staffordshire so if anyone can tell me anything more, I would love to hear.
Aesthetically pleasing this piece is in good condition for its age which I consider to be c 1860. Note* the tiny dove above female is missing a head. I’m sure this could be fixed or simply left. Visually only noticeable if you know what you are looking for as Staffordshire pieces are so busy with detail. There are no detectable repairs. Exhibits signs of age; minor areas of paint loss. As they are part of the description, please enlarge all photographs to better ascertain details and condition.
Dimensions: Height 11.5cm,Width 11cm,Depth 7cm