What is the value of a working Mattel Tubsy Doll from the 1960's?

A working Mattel Tubsy Doll from the 1960s can be valued between $50 to $150, depending on its condition, rarity, and whether it retains its original packaging. Dolls in mint condition or with unique features may fetch higher prices among collectors. The value can also fluctuate based on market demand and trends in vintage toy collecting. Always consult current market listings for the most accurate pricing.