I'm not very familiar with early Brazil...are those stamps that you think you will never own due to cost? Otherwise, what do you do if you ever get the stamp? Mount it overtop the picture?
Not at all, just a recognition aid.
When you are not familiar with a country's early issues, an image can assist, look at the Brazil Scott type A31 and A35 for example.
This is no different than an normal imaged Album Page.
I generally purchase Album pages of stamps, checking my images against the online image of multiple stamps aids ID.
When I get an issue, I simply lift off the image.
They are attached by a 2mm strip of double sided tape.
They lift off by tweezers.