What damper?

No idea how to identify the year and vehicle it was installed on but if you have a picture or 2 I can probably identify what engine it came on, and possibly what year span. 360's used at least 3 different balancers that I know of. 71-74 was the early style that looked similar to a cast crank 340 balancer. 75- 92 was the mid style, 93 up are the magnum engine balancers.