This object is a vintage hand-blown clear art glass paperweight enclosing internal colored glass sculptures of two small fish and green aquatic plant or coral elements, typically valued between $25 and $50. 

Features

• Clear heavy glass body

• Internal blue-and-green aquatic life motif

• Controlled air bubbles (bullicante)

The secondary market value for this style of vintage handmade art glass aquarium paperweight generally ranges between $15 and $45.

The precise valuation depends heavily on its origin and condition:

• Unsigned / Mass-Produced Imports: If the piece lacks any markings or signatures on the base, it is likely a mid-to-late 20th-century import (often from factories in China or generic export studios). These typically sell on platforms like Mercari or eBay for $15 – $25. 

• Murano / Artisan Handcrafted: Authentic, vintage mid-century Italian Murano glass executions featuring this exact style of bullicante (controlled air bubbles) and detailed fish figurines command a premium, selling on Etsy and specialized antique sites for $35 – $45+