Wall mirrors in two sizes and two color options made from natural materials. The dimensions are 65 x 7 x 92 cm and 79 x 7 x 162 cm. The geometry is correct and you can apply the TurboSmooth modifier by smoothing groups.
Links:
https://www.decorist.com/finds/293754/atoll-rectangular-mirror-with-clear-glass-antique-white-36×26/ 
https://www.ballarddesigns.com/atoll-rectangular-mirror-with-clear-glass/mirrors-art/mirrors/wall-mirrors/198109?listIndex0&uniqueId198109 
Second link opens with vpn
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Archive includes:
Atoll_mirror_2013_Corona.max
Atoll_mirror_2013_V-Ray.max
Atoll_mirror_2016_Corona.max
Atoll_mirror_2016_V-Ray.max
Atoll_mirror_Corona.FBX
Atoll_mirror_V-Ray.FBX
Textures 6.61 Mb