Both seem to have the decals/printing on one side (not sure if this is a vuelta thing). The silver Rim on the inside looks ro have had its nipple holes opened up - no idea why. It doesn't affect anything.

Brand: Vuelta
Number of Spoke Holes: 36 Hole
Wheel Size: 26 in
Type: Clincher
Valve Type: Schrader
Material: Aluminium
Part Type: Rim