Always verify the legitimacy of individuals or organizations before sharing personal info or making payments. Do your research. RSA is not responsible for losses or damages caused by scams or fraudulent activity.
For basic information go to the Remington Arms web site. Press the block labled "Library" then "HISTORY". You should see the 14-1/2 listed. Then when you know the basics you can come back with specific questions. A general question like yours could require a book be written.
Loren RSA