Vintage Silver Tone Metal Floral Brooch

Vintage silver toned metal floral brooch has two intricate flowers and 3 leaves that delicately wrap around the stems. There are no markings so I don't think it is sterling. On the highest center of the leaves, there seems to be some burnishing, so I am not sure if it is wear or not, but It is not noticeable when wearing. In very good pre-owned condition. Measurement in photo. Weight 0.5oz.