Painting or Print? The Tests That Expose Reproductions on the Wall

The estate's "oil painting" question is usually answerable in two minutes with a loupe and a flashlight — before any argument about artists begins.

The magnifier test

• Offset/photomechanical prints (most framed 'art'): a regular dot rosette pattern (CMYK) under 10× — instant verdict, no exceptions.
• Giclée/inkjet: microscopic sprayed dot chaos, often on canvas-textured paper or real canvas.
• Genuine oil/acrylic: continuous pigment, visible brush-drag, color mixed in the stroke.
• Original prints as art (etchings, engravings, lithographs — a legitimate collected field): no rosettes but their own signatures — etching's plate mark (embossed rectangle around the image), engraving's crisp incised lines, stone litho's greasy crayon grain. "Print" isn't an insult; pretending is.

The raking-light test

Skim light across the surface: real paintings show topography — impasto ridges following the image's logic (thick highlights, directional strokes). Flat surface with printed "brushstrokes" = repro; and the common con, textured prints (embossed stroke-pattern or clear gel swiped over a print — "enhanced giclée"), betrays itself when the texture doesn't match the image (ridges crossing color boundaries randomly — coherence, as ever).

The back knows

Flip it (the underside rule applies to art): canvas age (oxidized brown vs bright white; hand-tacked vs staples — staples = post-1940s stretching at minimum), stretcher construction and keys, old exhibition/framer labels (provenance gold), auction stencils — versus a paper-sealed factory back with a barcode. Frames tell their own story (frame dating guide) but frames and art swap freely — date both, trust neither alone.

Signatures: the least reliable evidence

Printed signatures reproduce with the image (loupe: dots); pencil-signed margins on real prints are legitimate (signed editions); and added fake signatures on genuine-but-anonymous paintings are a classic upgrade con — a signature earns exactly as much trust as the surface it sits on. UV light helps: later additions and overpaint fluoresce differently.

What each answer is worth

Original-but-anonymous period paintings trade on decorative quality (genre scenes, portraits, landscapes: tens to hundreds, quality dependent); listed-artist originals go to research and appraisal; collected original prints price by artist/edition/state; reproductions price as frames-plus-decor. The Antique Identifier app reads surface texture, back evidence and style era from your photos (shot list: front, raking, back, signature macro) — the sorting that decides which pieces earn the specialist's hour.

The bottom line

Dots = print, logical impasto = paint, mismatched texture = con, and the back outranks the signature. Two minutes of tests before anyone says an artist's name out loud.

Values mentioned in this guide are indicative ranges from public auction and marketplace results; condition, provenance and market timing move them substantially. For insurance or estate purposes, get a written appraisal from a certified appraiser.