The Kodak Folding Improved No.4 is an early roll-film folding camera produced by Kodak in the late 19th century. It belongs to the first generation of self-casing folding cameras aimed at amateur photographers, positioned as a portable alternative to box-form models of the period.

Sales data for the Folding Improved No.4 is very thin, so price guidance today should be treated as indicative rather than settled. The single recorded UK auction hammer result stands at £438 in 2022, suggesting that a presentable example can sell for several hundred pounds at saleroom level, though a wider range of results would be needed to establish a reliable median value.