Please excuse cross posting.

Maintenance people brought to the archive an oil landscape painting, which they found in a
storage room.
It is very dusty and the canvas part of the frame has smudged fingerprints.
Not a well known painter.

How can I clean this?  Any suggestions?
Does anyone know professionals in the Toronto area?

I realize the question is not exactly "archival", but there are too many knowledgeable people out there to pass up.

Magda Zakanyi
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