Tourist Visa separate from Passport

[cloud122]

Girl from Philippines has passport and visa to come visit me in US. She has sent me pictures of both. She knows I am sending airline tickets with mileage, so they cannot be refunded and have no cash value. She says visa was gotten through embassy in Manila and all is good. I thought the visa was part of the passport. Can this be correct?

[jnk]

You need to have passport in order to get visa. After visa approval visa officer will put stamp on the passport.

Sample of US non immigtrant visa stamp,

https://www.immihelp.com/sample-usa-non-immigrant-visa/

[cloud122]

So visa is stamp, not a document

You need to have passport in order to get visa. After visa approval visa officer will put stamp on the passport.

Sample of US non immigtrant visa stamp,
https://www.immihelp.com/sample-usa-non-immigrant-visa/

So the visa is actually a stamp that is placed on the page inside the passport, and never another separate document? What the girl sent me looked like a separate document and was not inside the passport. So not real.
Thank you.