https://smashmockup.com/4-fold-accordion-brochure-mockup/

Accordion PSD 4 fold brochure mockup; structured in photoshop and can be edited with smart objects. Similarly, the brochure is structured in photoshop and can be edited with smart objects. Get the PSD file and enjoy it.

This fully layered PSD file allows you to show off your design. The PSD file allows you to change all elements and come with many customization options. Completely layered file with smart object.