Opinions on Studio Portraits

[andya]

Hi
Would appreciate your opinions regarding the authenticity of these three pictures.
Nothing on the rear,all around 5 1/2 x 4 3/4 inches
many thanks
andy

[andya]

pic 2

pic 2

[andya]

pic 3

pic 3

[andya]

rear

rear3

[Michael73]

These are not original, reproduced on different paper sorts/sizes and often offered for sale, sometimes as originals....

[andya]

thank you
what are the tell tail signs as I need to point them out to the seller who I think believes these are genuine
Regards
andy