It really was hard to tell his age from a black and white photograph.
You know that a lady never wants to tell her age.
Daniel could not tell its age - a few weeks, perhaps older.
It was impossible to tell his age in the dim light.
"Perhaps the old fossil hunter will tell us his age?"
You can't tell a man's age by looking at his photo, not if he takes boosterspice.
I cannot tell her age from this distance, but she certainly appears fit.
She, in common with most mothers, could tell a child's age and state of health at a glance.
It was hard to tell his age; he could have been eight or eighty.
She's about 40 years old; she won't tell anyone her exact age.