It has been several years since I submitted a Form 1, back then it was all paper and via the US Mail.
I just did an Eform 1 over the weekend and am shocked to say I received an email today saying it has been approved.   Amazing.

On to the questions:
- Do they mail a hard copy of the approved form with the actual stamp or is the PDF I received in the email it?
- Is it still necessary to engrave my name (as manufacturer) and City on the new SBR?

Thanks.

No hard copy, you just get that PDF.

And yes, you still have to engrave your name, city, and state on the frame/receiver of the firearm.

Ok, pretty much what I was thinking.  
Thanks.