
Identify chess pieces in How Computers Play Chess



@Player_Breyer, thanks for responding. It does appear to be styled like a Drueke 820.40 but the bishop in Levy's book seem slimmer & taller than that of Drueke's. Never handled a Drueke in person though unfortunately so my opinion is entirely based on photos on the internet.
@BattleDuck, thanks for the ebay link. It does look very similar. The fact that it is unnamed makes it a challenge to identify what it is.