Visa Stamping supporting documents: Is it sufficient i797 C for Visa Stamping?

[RaviPallapu]

I got i797 copy from my employer. Almost 1 month over my H1B visa extension got approved. But my employer provived i797 C.Still i didnt receive i797 A or B copyies or Orginals.

I received i797 C. Can i go for H1B visa stamping with the i797 C?

please help me and give the suggestions on the issue. I am confusing ...to go for stamping.