Icon of St. Nicholas the Wonder-Worker (18th century)
Tempera on wood, private collection (Saint Petersburg)
Before and after restoration:
Initial state:
The icon had a strongly discoloured varnish as well as a thick layer of dust and grime. The icon had numerous loses of the colour layer.
Done:
Paint surface was consolidated, old varnish was removed to recover the original look. Icon's surface was varnished and retouched.
