Hand-painted ceramic dish

This is a small, irregularly shaped ceramic dish or catchall bowl featuring a hand-painted decorative scene that mimics a mosaic pattern. The interior depicts two white birds, possibly doves, drinking from a central pedestal bowl or fountain against a deeply textured dark blue and green background composed of small square tiles. The lower portion of the interior shows a contrasting band of warm, golden-brown and ochre rectangular tiles. The ceramic surface has a glossy glazed finish with smooth, rounded edges and an organic kidney-like contour. The overall visual design appears to draw inspiration from ancient Byzantine mosaics, specifically referencing imagery associated with Ravenna. The owner has supplied an unverified note suggesting the item is marked 'Ravenna galla placidia mos:v:sec: Navarro. b.', a claim that remains unauthenticated and is not independently verified by visual markings visible in the available photograph. The piece displays general signs of light handling consistent with display or decorative use, though no major structural damage, cracks, or chips are immediately apparent from the angle provided. The identification rests purely on the observed ceramic construction and painted mosaic-style iconography, without explicit maker's marks or stamps being clearly legible in the image.

Based on what I can see in the provided image, this is a small, irregularly shaped ceramic dish featuring a hand-painted mosaic-style scene depicting two white birds drinking from a central fountain. The owner identifies this as marked 'Ravenna galla placidia mos:v:sec: Navarro. b.' and connects it to Byzantine mosaic iconography. Per user submission, the estimated value range for an item of this type, assuming the attribution and referenced markings are correct, is $150 to $300. However, I cannot verify the markings, age, or authorship from a photograph alone. The ceramic surface appears to have a glossy finish with light handling wear and no apparent structural damage, but I would need physical inspection to confirm its condition and material composition. General market demand for decorative ceramic studio pieces inspired by historical art styles is moderate, with buyers appreciating hand-painted details. If the piece is later shown to be a modern tourist souvenir, a reproduction, or merely in the style of the referenced historical tradition rather than the claimed studio work, the value would likely decrease significantly to the $30-$75 range. To evaluate the piece fully and support the attribution, physical examination by a ceramic specialist, verification of any base markings, and research into the cited maker would be necessary.