While little is known of the form of early finishing stoves, many different types were probably used, because they were frequently fabricated according to the bookbinder's own specifications. A great variety were in use during the early years of the 19th century, all of which burned charcoal or coke, as they must have done for centuries. The gas-heated stove was probably introduced in the 1830s, while the electric stove has been in use since the early part of the 20th century. (130 , 161 , 236 , 335 )
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