|Roller Coasters Built||49|
|Roller Coaster Locations||68|
|Extant Roller Coasters||13|
Plaques with "Duce" can be found on the trains of S.D.C. roller coasters. This is in reference to Mack Duce who advertised as "Mack Duce/Export Sales Corp.". Bumper cars were also advertised from this company and attributed to Spagiari-Barbieri-Duce.
Owner / Operator
The principals of S.D.C. were Walter Spaggiari, Mack D. Duce and Giancarlo Casoli, which also made for the company's initials. Around 1964 Walter Spaggiari was known to work with Barbieri, perhaps before the Barbieri Rides company existed. Giancarlo Casoli is/was somehow connected with the Mirabilandia amusement park.