Trailer tyre (Goodyear 650x16) abnormality

Question from visitor, 30/11/2012 :I have a trailer tyre (Goodyear 650x16) which has four sets of three small indentations on the sidewall (at 12 o'clock / 3 o'clock/ 6o'clock / 9 o'clock) The "holes" are about 5mm deep and appear to have been made during manufacture. Should I be concerned about this?
Answer by rezulteo, 30/11/2012 :

Hello there :)

Unfortunately it is impossible to tell if there is a wear problem or manufacturing fault with your tyre unless you can provide us with a photo.

Saying this, your description does not sound normal so we would advise you seek further help and advice.

Kind regards,

The rezulteo team