Time travel with loose change

In matters of Time and Chronology, naught wields more power than the present. Whereas a man may dam the river and change the course of events downstream, he can do naught but throw stones to ripple what cometh before. Nonetheless, a man who is pure of mind and body with need to erase a small indiscretion will find this ritual of some use.

This recently-discovered chapter of the Key of Solomon documents the fabled Experiment Concerning Time. Carefully restored and edited, this definitive edition contains never-before-seen annotations found within the original book's pages. It also includes a "translation" for modern practitioners provided by a purported Chronodaemon.

This ritual will surely find a place among every active sorcerer's or witch's library.

Requires: 13 coins.
Recommended: Blank journal for recording Experiment findings
Note: For entertainment purposes only. Publisher shall be held blameless for any harm done to timelines, personal or universal.

What is this?

Time Travel with Loose Change is a journaling game about someone who cannot leave the past well enough alone, and about what that person is willing to gamble to set things "right." You can play it by writing in a journal, or just speculating or imagining in your mind. I do recommend using real coins, though.

This is a first draft of an experimental system designed to fit on both sides of a 5x7in postcard (download the PDF to see all of it!). Players may need to interpolate from what's provided. Feel free to ask questions below!

Credits

• "Vintage Lined Ripped Paper Strip. Scrap Paper with Torn Edge, Scrapbook Sticky Notes, Notebook Page" and "Vintage Scrapbook Note Paper Blank. Ripped paper with Paperclip and Torn Edge" by Anna Lysenko, Old Paper Notes PNGs by Vecteezy
  
• Chronometer Escape Charles by E. Jacot, July 27, 1852, U.S. Patent #9150
• Typefaces: Bloomsbury, Northern Soul, Ink Free, Roboto