This is for the "newer" (but still really old Quamar (older still Fiorenzato)) T-80 model only. Note the three raised pins. This part will only work with models that have the corresponding three holes to accept the pins, and will not work with the two hole versions. The old two pin versions have been made obsolete.
Only for the older model T-48 and T-80 by Quamar, so is suitable for their M80, Old M80, Q13 Coni and Q13/75 models. Not for the Fiorenzato F-6, F-8 F-75 or F-75E models.