File Original: 16mm film, b/w, pos, optical, 00:00:48 Exclamation Triangle Solid In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated
File Use Copy: DVD DVD Box 4 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated
File Streaming File: 85193-129-3 Online In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated
File Sleeping Bear Dunes Films, undated Online (Pictured Rocks Park Proposal Promo) In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films
File Original: 16mm film, b/w, pos, optical, 00:00:46 Exclamation Triangle Solid In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated
File Use Copy: DVD DVD Box 4 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated
File Streaming File: 85193-129-4 Online In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated
File Sleeping Bear Dunes Films, undated Online (Pictured Rocks Park Proposal, interview with Hart and Congressman Clevenger) In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films
File Original: 16mm film, b/w, pos, optical, 00:00:48 Exclamation Triangle Solid In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated
File Use Copy: DVD DVD Box 4 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Visual Materials » Motion Pictures » Sleeping Bear Dunes Films » Sleeping Bear Dunes Films, undated