Little Gem
United Specialties Co.
1922

Martian Big 4
Martian Mfg. Co.
1923

Martian Special
Martian Mfg. Co.
1924

Radiola I
1923

Philmore Selective
1931

Aeriola Jr.
1921

Giblin RadioEar
1921

Smith Cannery Machines Tyee
Manufactured in Seattle
c. 1923

United Cabinet
1924

Kenrad B-12
1923

Federal Jr.
1922

Marvel 101
1921

Kodel S-1
1924

Howe
1925

Lambert
1926

National Electric Supply
1922 

Lemco Model 340
1924

Niehoff
c. 1922

Steinite Standard
1926

Deforest BC14A
1917
The BC14A was designed for use as an artillery spotting receiver during WW1.

 
Uncle Al's Radio Shop - Miracle
1925 

Deforest Everyman
1922

Hunt & McCree Model 797
1912
This is one of the earliest commercial crystal sets and is the oldest crystal radio in my collection

Unknown
c. 1924
This looks like a Lemco set but unfortunately the label is missing

Adams Morgan
1912

Geiger
c. 1924