The decorative grill pattern and the treble side registers are identical to Scandalli’s Super VI model.
Aldo Mencaccini was the founder and skilled accordion technician of the New York company Bell accordions. He was also involved in making the original Scandal Super VI accordion. The Bell 4516 model from Mencaccini was used as a prototype for the early Scandall Super VI model. This model was often known as 2S or 4S. The Bell 25xx models are made by Scandalli, and the factory’s Super VI model was released under the name BELL 4511 as well. The only differences were in the design of the treble grill and registers.