Bathroom faucet looks close to perchance a moen? I thought I was a plumber but one dumb cross-question.Knobs are...

I thought I was a plumber but one dumb cross-question.Knobs are all one piece beside no screw in them holding them to the stem..no introductory or set screw...no visible routine to unfasten them.what am I not seeing?
Answers:    On some single toy with lav faucets on the back side of the switch there will be rather plug-you remove this plug and there will a set screw lately loosen and remove the handle.

On some single feel lav faucets you have to remove the plug within the center of the handle-all you do is take your screw driver and pry the center plug off-then you will see the set screw.

On lav faucets next to double handle you do like peas in a pod as above.

As all handle are installed with a set screw wither surrounded by the middle of the handle or surrounded by the back of the button.

Hope this helps.
Moen is set for placing small plastic inserts over the handle set screw. It requires a small fine screw driver or spear to pry it off to reveal the screw.