what is I-129?
I-129 is form that is signed by employer and sent to USCIS by lawyer
what are the original documents to be carried for the first time H4 stamping.
----------- from the lawyer who filed H1 petition for your spouse he has the Form I-129+LCA+ cover letter, lawyer need to certify the petition pakage, also take spouse H1 approval notice, spouse employer letter, copy of spouse recent pay stubs, his I-94 copy of both sides, copy of w-2 if he has. search the threads you will find more info.