Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3159558.
This is a recreation of two different kings, a chariot (rook), and a elephant (bishop) found in Nishapur, Iran, believed to be from between the 9th and 12th century. The pawn and the knight are based on other pieces from a similar time and place with stylings based on these pieces.
you can find the rules that these pieces would have been played with here: https://en.wikipedia.org/wiki/Shatranj
you can see the individual pieces on the Met's website: https://www.metmuseum.org/art/collection/search/449843 https://www.metmuseum.org/art/collection/search/449841 https://www.metmuseum.org/art/collection/search/449840 https://www.metmuseum.org/art/collection/search/449842