Louisa McElwain, Pilar, oil, 36 x 48. Estimate: $8,000-$12,000. ← Previous Next → Louisa McElwain, Pilar, oil, 36 x 48. Estimate: $8,000-$12,000. Louisa McElwain, Pilar, oil, 36 x 48. Estimate: $8,000-$12,000.