The Zeiss Ikon Ikonta 520/18 is a folding medium-format camera produced by Zeiss Ikon, part of the prewar Ikonta family of self-erecting roll-film folders. This particular reference, designated 520/18, is associated with a variant intended for the China market.

Auction data for this specific China-market Ikonta 520/18 is extremely thin: the only recorded UK auction hammer result on file is £180, achieved back in 2003. With no recent saleroom activity to anchor a current value, the price a clean example would fetch today is uncertain and would depend heavily on condition, completeness and bidder competition on the day.