Martin Grelle, Prayers of the Pipe Carrier, oil, 58 x 66. Estimate: $200,000-300,000. ← Previous Next → Martin Grelle, Prayers of the Pipe Carrier, oil, 58 x 66. Estimate: $200,000-300,000. Martin Grelle, Prayers of the Pipe Carrier, oil, 58 x 66. Estimate: $200,000-300,000.