Ancient Celtiberian (Celtic) or Roman key, likely from the Iberian Peninsula; from an old collection of Celtiberian items

An interesting and intricate ancient key from a Celtiberian collection. The handle is bronze, and the key part is iron (which someone encased in epoxy, presumably for protection). Bronze handles with iron keys are common attributes to Roman era keys. Of special note is the globe/strapwork handle which testifies to the key's creation by an ancient artisan.

More on the provenance below, but in short, we purchased an old collection of ancient items from the Iberian Peninsula region.

For other examples of ancient bronze handled, iron tanged, ancient keys see:
1. The Cleveland Museum of Art, "Key 1-100 CE", Location 103 Roman
2. "Substantial Roman Bronze and Iron Key...", Apollo Art Auctions, April 23, 2023 (1,000 GBP sale price)
3. Getty Museum - Rotary Key with Horse-Head Handle, 2nd century A.D., 96.AC.197

Measurements -
Measures approx. 97.92mm across
Measures approx. 32.21mm tall

Provenance -

We bought a collection of artifacts at auction in Switzerland (La Galerie Numismatique, September 28th, 2024); we are researching each object and offering them for sale individually. You can see the entire collection in the pictures we posted.

In the course of our investigation, we found that the artifacts had several names of places in the Celtiberian region written on them, for example "Salienca". Also, the collection's brooch design was unique to the Celtiberians (Google search "Celtiberian Fibula" to see similar examples). We've come to the conclusion that the collection is specific to the Celtiberian era/region.

Wikipedia tells us the Celtiberians "were a group of Celts and Celticized peoples inhabiting an area in the central-northeastern Iberian Peninsula during the final centuries of the BC. They were explicitly mentioned as being Celts by several classic authors (e.g. Strabo)."

Condition -

One of the bronze straps is broken. The bronze is darkened with oxidation. The iron is rusty and covered in epoxy. There are several small nicks in the bronze.