9. Candlestick Phones - Estimated Value $500-$1,500

Candlestick phones, popular in the early 1900s, remained in use during the 1960s, often preferred over rotary dial phones. Their distinctive design, featuring a separate transmitter and receiver, made them a common sight in old movies and TV shows. Today, these phones are highly sought after by collectors for their historical significance and unique appearance. Depending on their condition and rarity, some candlestick phones can sell for up to $1,500. If you have one stored away, it could be a valuable piece of communication history.