Delft's ceramic decorative plate (not authenticated)

This is a round ceramic decorative plate, shown resting upside down on a textured carpet and fitted with a metal spring wire hanger across its reverse for wall display. The ceramic body is off-white or cream-colored with a smooth, glazed finish. Visible on the reverse side is a dark blue underglaze maker's mark consisting of a stylized crown at the top, followed by the capitalized text "HAND DECORATED", an artist's palette graphic with two brushes, the word "'DELFT'S'" enclosed in quotation marks, and the number "380" positioned near the bottom edge. The overall physical condition appears to be intact with minor surface dust, though subtle crazing or aging cannot be ruled out without a closer inspection. The style of the mark suggests a mid-20th-century souvenir or decorative ceramic piece, potentially produced in the Netherlands or by a manufacturer utilizing traditional Delft-style motifs, though the item remains unauthenticated. The attribution rests entirely upon the printed blue maker's mark and text visible on the underside of the piece.

Based on what I can see in the photograph, this round ceramic decorative plate bears a dark blue underglaze maker's mark on the reverse with a stylized crown, the text 'HAND DECORATED', an artist's palette graphic, the word 'DELFT'S', and the number '380'. I cannot verify from a photo whether the mark is contemporaneous or if the piece is a mid-20th-century souvenir item produced in the style of traditional Dutch pottery, as visible markings alone do not establish authorship. The ceramic body appears to have an off-white glazed finish and an attached metal spring wire hanger, but I would need physical inspection to confirm the presence of subtle crazing, aging, or glaze composition. My valuation range of $30 to $60 reflects typical market behavior for mid-century decorative ceramic pieces of this type assuming the attribution is correct. General market demand for souvenir-style decorative plates remains modest, as they are largely treated as decorative home furnishings rather than high-end fine art or investment-grade ceramics. If physical inspection reveals the item to be a later reproduction, replica, copy, or merely made 'in the style of' rather than a period piece matching the mark's implication, the value would likely drop to the $10 to $20 range. To establish more securely whether the piece holds any higher historical significance, an in-person examination by a ceramics expert, hallmark verification, and a review of any available provenance documentation would be required.