3x Right Angle Gearboxes & 1x Differential Gear Box

3x Right Angle Gearboxes & 1x Differential Gear Box.
Also includes assorted other components, unsure if they relate to the four main units.
All three 90-degree right angle Gearboxes are manufactured in Italy by Comer Industries Gearboxes.
Part numbers unknown, see photos for further details stamped on id plates.
Includes one rear differential unit made in Italy, unable to read manufacturer name, see photos for further details.
Amounts of use varies with each unit. Differential gearbox appears older with more surface rust. Shafts on all four main units can easily be turned by hand. Unknown if units are complete.