Original Card for a Foreign Born U.S. Citizen Adopted Child 
Information You must present original documents or copies certified by the agency that issued them. We cannot accept photocopies or notarized copies. All documents must be current not expired. We cannot accept a receipt showing you applied for the document. Adoption In some cases , we can assign your adopted child a number before the adoption is complete , but you may want to wait. Then , you can apply for the number using your child's new name. If you want to claim your child for tax purposes while the adoption is still pending , contact the Internal Revenue Service for Form W-7A, Application for Taxpayer Identification Number for Pending U.S. Adoptions. For more information, see Social Security Numbers For Children (Publication No. 05-10023). 

What original documents do I need? 
Citizenship We can accept only certain documents as proof of U.S. citizenship. These include a U.S. passport, Certificate of Naturalization N-550/N-570 or Certificate of Citizenship N-560/N-561. Foreign - born adopted children residing permanently in the United States may automatically acquire U.S. citizenship when they meet certain requirements. We may accept the following as evidence of U.S. citizenship : Certificate of Citizenship N-560/N-561 ; Certificate of Naturalization N-550/N-570 ; Machine Readable Immigrant Visa MRIV showing a category code of IR3 or IH3 ; or U.S. passport. Age You must present your child's foreign birth certificate if you have it or can get it within 10 days. If not , we will consider other documents such as your child's passport or a document issued by the Department of Homeland Security DHS as evidence of your child's age. Anyone age 12 or older requesting an original Social Security number must appear in person for an interview. We will ask for evidence to show that your child does not have a Social Security number. Here are examples of documents you can use to prove a Social Security number was 

user: Hello. Please,could you give me some info about an original SSN card for a foreign born adopted child?

assistant: Sure, I can help you with that.

assistant: Please, i need to know if you want to claim your child for tax purposes?

user: No, i'm not looking to do that.

assistant: Ok. Do you need more information about SSN for children?

user: Yes, please. I'm still on need of some info about the matter.

assistant: Perfect, if you need more information about this issue, you can look for the Publication Nº 05-10023, which can answer your possible questions about Social Security Numbers for Children.

user: Thanks, i'll look for it when i can. Please, i have another doubt. Do i need to present any document as child's parent?

assistant: Indeed, you need to do that. We need to see a proof of your identity as child's parent. That document must be valid and containing your date of birth or age as well a recent photograph.

user: Oh, i see. I better write that down. Please, you said before that the publication i need to look for is which number?

assistant: Sure. It's publication Nº 05-10023.

user: Thanks, got it. Umm, i suppose you only accept certain types of documents to proof my child's identity, isn't?

assistant: That's right. We request some specific documents, and they have to show plenty of information of your child, such as child's name, age, date of birth, parents name and of course a recent photograph.