Well , your item seems to be made from urethane & steel , ewarnick .
I'd speculate that it was intended to be used as a non-factory 'slop-limiter' for an automotive transaxle (aka tranny mount) .
Urethane mounts & bushings are usually much firmer than factory standard , as far as their durameter rating , and are common on performance vehicles (& wanna-be performance vehicles) .
Damn sure not antiques , if you sprekenzie french .