Q: I’m a retired elementary-school teacher. I used to spend time in the spring teaching about bird migration, so through the years I picked up four old Audubon bird charts. They were originally painted in watercolors by Louis Agassiz Fuertes for the Massachusetts Audubon Society. They’re in very good condition because I laminated them years ago to protect them from the students’ handling. Each one is 27 by 42 inches. What can you tell me about the artist and the charts?

A: Louis Agassiz Fuertes (1874-1927) was an ornithologist and an artist who specialized in painting birds. Your charts were originally published in 1898, 1900, 1912 and 1924. The first two were published by the Massachusetts Audubon Society, and the last two by Milton Bradley Co. Original 19th-century prints of John James Audubon’s portraits of single birds can sell for hundreds and even thousands of dollars. Your charts are not as valuable, but the fact that you laminated them decreased their value even further. Still, a museum in your area might be interested in them.

Q: When I was metal-detecting a while ago, I found a 1934 North Carolina chauffeur’s badge. It’s metal with the embossed wording, “Licensed Motor Vehicle Driver Badge, Expires June 30, 1934.” What do you think it’s worth?

A: Starting around 1900, chauffeurs were specially licensed. Until the 1930s, a chauffeur was issued a paper certificate that was displayed in his car or a metal badge that he wore on his hat or jacket. Today, North Carolina does not require special licensing for chauffeurs. There are collectors who hunt for chauffeur badges. Most badges sell for about $20.

Q: My mother-in-law died unexpectedly, and I ended up with the job of cleaning out the house where she lived for 50 years. During that process, I found a pair of Mickey Mouse cufflinks about 2 inches long and 1 3/8 inches high. They’re cast in a silver-tone metal with an enameled Mickey in a running pose. His gloves and shoes are yellow, his shorts are red with yellow buttons, his face is silver and his eyes, ears, arms and legs are black. The back is marked with the copyright symbol and “Walt Disney Productions.” Are they old and valuable?

A: You have a pair of vintage Mickey Mouse cufflinks, probably made by the Dexter Manufacturing Co. of Providence, R.I. Dexter made Disney character jewelry, including cufflinks, starting in 1953 and continuing off and on into the mid-1980s. Your cufflinks would sell for about $10.

Tip: Beware of plastic jewelry. Some will change color, become brittle or even turn into a brown, sticky puddle. Any plastic that has an odor is deteriorating and should not be kept near other objects.