Still life oil painting bearing the signature "S. Marus"

This is a framed oil painting on canvas, appearing to depict a somber still life arrangement of domestic metallic and ceramic objects. The composition features a central large pewter-colored kettle, a tall lidded cylinder resembling a milk can, a stacked bowl and cup, a glass half-filled with liquid, and a long knife in the foreground. The color palette is predominantly monochromatic, utilizing shades of grey, muted beige, and silver, with thin, visible brushwork that creates a soft, diffused lighting effect. In the lower right corner, there is a visible handwritten signature reading "S. Marus" and the number "93.", which is consistent with the artist signature for Samuel Marus as suggested by the owner. However, this attribution remains a hypothesis subject to physical inspection and professional authentication to rule out later additions or reproductions. The user identifies the artist as Polish painter Samuel Marus, a claim which is currently unverified. The work is housed in a simple, thin black frame which shows minor edge wear. The canvas texture is visible through the paint layers, particularly in the upper background areas. The lighting in the painting suggests a source from the left, casting soft shadows across the metallic surfaces. No other markings or inscriptions are visible on the front of the piece.

Based on the provided imagery, I have examined this framed oil on canvas still life. The composition utilizes a subtle, monochromatic palette with visible brushwork that suggests a soft, diffuse light source. Per user submission, the work is attributed to the Polish artist Samuel Marus. I can see a signature in the lower right corner reading 'S. Marus' followed by '93.', which appears consistent with markings associated with this artist; however, I cannot verify the legitimacy of this signature from a photo alone as markings can be added later or reproduced. The physical condition appears generally good, though the frame shows minor wear and the canvas texture is notably visible, which could be a characteristic of the artist's technique or the material choice. My value estimate of $400 - $800 assumes the hypothesis of authorship is correct, reflecting general market interest for contemporary Polish still life works of this size and era. The market for such items is specialized, and demand relies heavily on the strength of the composition and the artist's following. I must state that this valuation is highly dependent on professional authentication. If this piece were determined to be a copy, a work 'in the style of', or if the signature was found to be a later addition, the decorative value would likely drop to a range of $50 - $150. To confirm the identity of the artist, a physical inspection by a specialist in Eastern European contemporary art is necessary, alongside an analysis of the pigments, canvas age, and a review of any available provenance or historical documentation regarding the painting's origin.