How do I date an old picture?

Dating relies on stylistic markers within the imagery, costume details, and the construction methods of the frame. Signatures, dates, and inscriptions on the reverse provide direct historical anchors. Material analysis of the canvas, board, or paper substrate further narrows the era of production. Comparative study against documented works by the same school helps confirm the timeframe.

Are watercolours painted on paper fragile?

Watercolour pigments on paper are sensitive to prolonged exposure to direct sunlight, which can cause fading. Proper conservation mounting using acid-free materials protects the paper from deterioration. Keeping pieces away from high humidity prevents foxing spots and paper discolouration. Glazing with protective glass shields the delicate surface from airborne pollutants and physical contact.

What is the difference between an oil and a watercolour?

Oil paintings use pigments suspended in drying oils applied to canvas or wood panels, resulting in a textured and durable surface. They allow for heavy impasto and continuous reworking by the artist. Watercolours employ translucent washes on paper where the white ground reflects light through the pigment. This medium prioritises speed, fluidity, and immediacy of execution over heavy layering.

Should I keep the original frame?

Retaining the period frame preserves the historical integrity and aesthetic context intended for the artwork. Frames often share the age of the painting and reflect contemporary framing fashions. Even when minor wear exists, original gesso or wood mouldings add character and verify the piece's history. Replacing them alters the balance between the art and its enclosure.