I have one of those. That's the Avocado Bombers twin brother. The lower half is a medium green with just a hint of blue in it. The top is mint green. The lower half is steel and the lid plastic. If you pop the palm of your hand on and off the hose end while it's running there is enough lid flex to get the tools jumping in their holder. The lid hinge is a plastic living hinge, which was pretty innovative for that time period. The motor is rated at 2.7 peak horsepower. Sealed suction is 100 inches but airflow is a meager 34 cfm. Most modern full sized canister vacs have more than triple that airflow. They are also a lot smaller than the cream, blue, green and brown colored plastic bodied Kenmores that would come in a few years. Heavy machine though.
You can use a HEPA bag for a Numatic Henry in these as well as a little HEPA dome filter for the top of the fan housing instead of the thin open cell foam of the original filter. Good vacuums, solid and durable. We certainly got our money's worth out of ours. Now all it needs is some paint and a good lid hinge, or a lid with a good hinge still riveted on.