[Walter Clark, Bradford Washburn, and G Dallas Hanna with Merritt Kirkpatrick in cockpit at Mount McKinley]
Transparency
[Walter Clark, Bradford Washburn, and G Dallas Hanna with Merritt Kirkpatrick in cockpit at Mount McKinley]
August-September 1938
Chromogenic development transparency
Overall: 3 1/4 × 4 in. (8.3 × 10.2 cm)
Gift of Walter J. Clark
1980.0739.0040
