Unveiling the World's Most Valuable Collectors' Items

25. Glidden Pottery (Original Price: $14.50 for a starter set* Worth Today: $15-$100 per piece*)

Glidden Pottery, hailing from Alfred, New York, thrived from 1940 to 1957, churning out a staggering 6,000 pieces per week by 1953. The popularity of Gliddenware reached new heights when it graced the screens of the beloved show, I Love Lucy. With an affordable price tag of $14.50 for an undecorated starter set, Glidden Pottery became accessible to many.

Nowadays, if you explore eBay, you'll discover a wide range of Glidden pieces fetching prices anywhere between $15 and $100. Interestingly, decorated Gliddenware tends to command a higher price compared to its plain counterparts.