Yes, the steel blade can be cleaned using a bit of soap and water. Rinse and dry the blade straight away and avoid rubbing on the handle. Simple and easy.
Vinegar.
You can clean an antique copper faucet. However, you may not want to. If you clean the piece it could lose its patina which takes away from its value. If you do clean it, use soap and water and be gentle.
Silver is a valuable commodity and if it is made into silver objects, these may be antique. Cleaning silver objects should only be done with mild silver cleaning products made and sold for the purpose. If you use abrasive household products, you could damage the object and reduce its value.
You did not state what the sculpture was made from. This would determine how you clean it.
There are several ways. You can get a silver cleaning cloth or a liquid silver cleaner where you dip the silver into and then wipe it clean.
There are several methods available to clean antique crystal decanters. Avoid putting them in the dishwasher, instead, use a mixture of 1 cup vinegar to 1 quart warm water to safely clean the decanters.
Clean by using warm water and a mild soap.
Antique lockets are delicate and require special cleaning techniques and procedures. A person can clean an antique locket safely and effectively by using a mixture of baking soda and water. A person can use a sponge dipped in the baking soda and water solution to softly rub the antique locket then let it air dry.
To clean antique diamond jewelry you can presoak or rinse the jewelry to remove any losse dirt. Then you can use a cleaning solution and a gentle brush to remove any remaining particles.
So toothpaste might clean silver but who noez i dnt <SHLASH>
To clean antique glass use a soft cloth and room temperature water. Line your sink with a towel to help prevent breakage. If the piece is very dirty, you can add some dish detergent to the water.
A very effective and cheap way to clean silver is to use toothpaste. Literally, toothpaste. Toothpaste is made to get rid of plaque and unwanted bacteria/germs. this is why it is used to clean silver well.