1920's era kitchen sink drain

[JukeboxJezabel]

About 30 years ago I wash able to by from Gerber Plumbing Fixtures outlet a non basket top flush mount drain which was fasted together by two screws. It is for a 1920's era kitchen sink drain and the drain resembles a grid shower drain in appearance. The stopper is a flat piece of rubber. From what I can gather on the net the sinks are being called vintage farm style legged sinks. Would anyone be able to tell me what what the proper name for this fixture is being called nowadays? Thanks in advance.

 

[IFIXH20]

Post a couple of pics of sink and strainer

 

[camaroderrick73]

Is this a trough style sink? Trough style is no longer code and must be replaced