Da Vinci Shower handle - No screws, help removing?!

[Simpsons2288]

Hi all, first time poster here. I just moved into a new place, and the whelp - the shower cartridge needs to be replaced. The only words on the cap say "DA VINCI" but I cannot find that brand anywhere. The shower handle has no screws anywhere, either. How do I get this thing off?? Photos below, happy to provide more if needed. Thank you for your help!

Joe

 

[Terry]

The end cap might come off with a flat blade and then you will see a screw behind it.

 

[Sponsor]

 

[Marlinman]

Here is their contact information.
DAVINCI
22 West 21st Street, Floor 5, New York, NY, 10010
Phone: 212.243.5400
Fax: 212.243.2403