Glass paperweight, likely handcrafted with an aquarium or ocean theme. These decorative items typically feature internal swirls of color and bubbles to mimic an underwater scene with coral can Be described as Murano-style, referring to the famous glassmaking tradition of Murano, Italy, known for its intricate hand-blown techniques. this piece features a "pinched" internal structure at the bottom, which is common in vintage aquarium-themed glass intended to resemble coral reefs or ocean waves.