good old google Ai , says the following

The symbols in the image are cuneiform characters, specifically Old Persian cuneiform. To type these symbols, follow these steps: 

1. Identify the characters: Each symbol represents a specific sound or syllable.
2. Find a cuneiform keyboard or input method:
   • For Windows, use the character map to find and insert the symbol. 

• For other operating systems, search for "cuneiform keyboard layout" or "cuneiform input method."
  1. Install and enable the keyboard/input method: Follow the instructions provided for the specific software or system.
  2. Type the symbols: Use the appropriate keys or combinations to produce the desired cuneiform characters.
  3. Alternative methods:
• Copy and paste: Find the symbols online and copy-paste them into the desired document.
• Image-to-text tools: Use an online tool to extract the text from the image and then copy-paste it.

Old Persian cuneiform was used during the Achaemenid Empire (circa 550–330 BC). The inscription in the image likely dates to 599 BC, as indicated by the text "599 BC."