"The Bobbsey Twins at Cedar Camp": 1921. Hardcover book. Fair condition: writing on inside of cover, spine very loose but pages still intact and bound. $7.00.
"The Bobbsey Twins at the Seashore": Earlier than 1921. Hardcover book. Fair condition: writing on inside of cover, spine intact but starting to separate; pages still intact and bound. $7.00.
Both books have old plastic book jackets for protection.