Hi Jay - how fascinating! I'm sure I'm not the only one who would love to see a photo of this miniature work of a blacksmith's anvil art; you are welcome to upload a photo in a new submission on the Antique General Guru Forum.
We don't do valuations on Antique Jewelry Investor. You might like to try What It's Worth 2 You. They have an antique collectibles expert that might be able to help you out.