Doberman Pinscher vs. Miniature Pinscher

Question
I was wondering if there is a tell tale in difference between a small pup Doberman Pinscher and a small pup Miniature Pinscher?

Answer
You don't say what age, but there would still be an enormous size difference. A Doberman pup would have HUGE feet and lots of bone and substance in relation to a Min Pin puppy, which is a toy breed.

Dobe pup: http://www.kateconnick.com/postcards/reddobe.jpg
Min Pin pup: http://content.answers.com/main/content/wp/en/thumb/6/66/180px-Kakau.jpg

Karen