Leaking widespread American Standard bathrrom sink faucet

I have two sets of American Standard widespread bathroom sink faucets that leak. To conserve water, I want to fix the leak, but I admit that I am a newbie to bathroom plumbing tasks. My house was built in 1943 and I believe the bathroom fixtures are original. I did a few searches on this forum and a few Google/YouTube searches, but I couldn't find anything on point. Any help is appreciated. Thank you.

A picture would be nice.
800 pixels or less can be attached.

I don't know what your financial situation is like but if they are 57 year old faucets you might just want to think about replacing them....

In 1943 American Standard actually made a decent faucet. Post a picture, it is probably just a matter of a washer and a seat.

At that time, the faucet could have had an integral spout on the sink.