Clearing out the attic and found this heavy metal base covered in sharp spikes. It’s rusted and looks dangerous. What is this?

modern versions.
Weight is another indicator—vintage flower frogs are typically made of heavier metals such as lead or cast iron, whereas more recent ones might use lighter materials. Examining any maker’s marks or stamps can also provide information about the era in which it was produced.
7. What It’s Worth: Collectible Value of Vintage Flower Frogs
The collectible value of a vintage flower frog depends on several factors, including its age, condition, rarity, and design. Pristine examples with unique designs or markings from well-known manufacturers can fetch higher prices

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