The ellusive "King Patent Lining" introduced on Spalding gloves in 1910 was a clever idea to extend the useful life of a glove by being able to replace a worn inner lining. This particular model, the BB1 World Series Model is a nice example. Some other interesting models and brands are featured at the baseballglovecollector.com website.
The inventor was Charles King, assignor to A.G. Spalding, with a patent date of 1910