Manufactured year:1948
Manufacturer: Bell/Howell  USA
Lens: Cooke Amotal Anastigmat f2/50mm
Screen size: 24×36mm

Manufactured year:1935
Manufacturer: Zeiss Ikon Germany
Lens: C.Z.Jena Sonnar f1.5/50mm
Screen size: 24×36mm

Manufactured year:1918
Manufacturer: Brevete S.G.D.G, France
Lens: Roussel Trylor f6.8/65mm
Screen size: 60×130mm

Resources : Korea Camera Museum