How do you tell if tretchikoff painting is worth?

To determine the worth of a Tretchikoff painting, consider factors such as its provenance, condition, rarity, and market demand. Research recent sale prices for similar works by the artist, as these can provide a benchmark for valuation. Consulting with art appraisers or auction houses specializing in 20th-century art can also offer insights into its worth. Finally, authenticity is crucial; ensure the painting has proper documentation or authentication.