Often, a daishō was formed with a katana and a wakizashi or a katana and a tantō, but the term was applied to other combinations as well. In today's photo you can see a daishō made of a katana and wakizashi, displayed in tokonoma, inside a samurai house in Matsue.
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 34mm
Aperture: F/6.3
Shutter Speed: 1/80s
ISO Sensitivity: ISO 4000