The escutcheon, stainless steel bathroom faucet body, and spout may all have a logo. These are great indicators of brand and can easily be found by unscrewing the faucet handle. If you can't find the logo, use a flashlight to search for the model number. The number will be located somewhere in the spout, escutcheon, and body of the faucet. However, if the spout is hidden, you'll have to use a flashlight to find the number.