Modern Hygiene

[branwynbreeze]

Hi. While cleaning garage, my tenants found a green Modern Hygiene vacuum. I think it's a green canister. So far, just machine and rusty metal handle with attachment on it. Not sure if there is more parts in there or not. I think the hose is long gone by now, though.

My question is how does one ID which year it may have come from or period they were produced.

TIA
bree