North America: USA
California: Berkeley, Oakland, Chico, San Francisco, San Jose
Washington: Seattle, Stanwood, Tacoma
Arizona: Tucson
Kansas: Lawrence
Texas: Beeville
Louisiana: New Orleans
Wisconsin: Madison
Kentucky: Danville
Tennessee: Smithville
West Virginia: Milton
Ohio: Toledo
New York: Rochester
Massachusetts: Sheffield
Maine: Deer Isle
Small California Loop Series #7
California Loop Series #28
California Loop Series #38
California Storm Series 1982 #28
California Storm Series 1982-83 #34
California Color Series 1986 - 87 #3
Chico Spring Series 1988 # 5
Chico Group II 2004-5 #5
Chico Spring Series 1988 #12
San José Group 2004-06 #6
San José Group 2004-06 #7
Working at Cal State, Chico, 2004
Pilchuck Summer Series 1988-1989 #9
Pilchuck Summer Series 1988-1989 #10
Seattle Series 1990 # 8
Seattle Series 1990 #9
SF • Tacoma Group 2006-2007 #4
SF • Tacoma Group 2006-2007 #5
Newcomb Series 1986 # 2
Toledo Group 1994-95 #2
Appalachian Group 1984 # 1
Kentucky Series 2000-01 #8
Kentucky Series 2000-01 #11
Marvin working in Kentucky with murrine by Stephen Powell, 2000
Blenko (#3 Peace) 1968
Marvin working at the Blenko Glass Factory, 1968
RIT Group 1996-9 #5
Berkshires 2003-04 #2
Working at the Fellerman-Raabe Glass Studio, MA, 2003
Haystack Summer Series 1987 #2
Haystack Summer Series 1987 #16
Haystack Summer Series 1987 #15