1. to inject or implant (a vaccine, microorganism, antibody, or antigen) into the body in order to protect against, treat, or study a disease. 2. to affect or treat (a person, animal, or plant) in this manner. 3. to introduce (microorganisms) into surroundings suited to their growth, as a culture medium.
925 is a standard sign used to mark sterling silver, and the meaning of the stamp is that the silver content in the piece is 92.5% (i.e., the remaining 7.5% is comprised of other elements). Perhaps because the âgoldâ jewelry you are looking at is not actually made of gold.
What Do Jewelry Stampings, Such As P4SR, Mean? Jewelry stampings, P4SR stamp, what does it mean? This and other odd stampings in American jewelry are non-traditional weird mixes of metals which enable the manufacture of what looks like gold or platinum metal, but with a unproven much less valuable metal mixture.