What an awesome pin to have in a motorcycle shop, too. It's hard to see in those photos, but the backglass has a row of buses on the upper portion. Very cool!
Check out the pics,
http://ipdb.org/machine.cgi?id=4499.
According to the IPDB, they made 14,000 of the solid state versions and only 155 EM (electro mechanical) with the reel type scoring. The EMs are super valuable where the SS versions are between $1500-$2000 depending on condition.