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Cartographers of the Office of Coast Survey's Marine Chart Division, ProductsBranch gather in Hassler Park to pay tribute to Ferdinand Hassler, first superintendent of the U.S. Survey of the Coast. L-R: Frank Powers, Paul Spence, Richard Cole (with chart), Patrick Chauvet, Mark Hetrick, Joe Robinson, Mike Gaeta,Holly Johnson, Pramod Singh, John Barber, Dan Morrow, Pearce Hunt, Tangdi Yang.