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Friday 25 May 2018 at 20:17
You could look at some of the sold listings on Ebay to see what some similar parts were sold for. For example, there's a listing or two for the slingshot set, brand new, that went for $29.95 and a set still for sale at $29.95. Since yours is used and damaged, you'll want to price it at something m...
Source: http://pinside.com/pinball/forum/topic/how-to-evaluate-the-price-of-old-parts-cyclone#post-4418134