Update
Updating database... Please wait.
Friday 11 May 2018 at 22:32
Quoted from toyotaboy:I'm assuming pinball is the same as any industry.
Engineering sample usually means engineering built everything themselves on a bench, usually with early prototype parts (maybe a mix of production and prototype parts). This is where they find all of the fit issues (so there ma...
Source: http://pinside.com/pinball/forum/topic/chicago-traderseller-club/page/120#post-4392894