Waltax
The Waltax was a series of 4.5×6 folders. Some of them were made by Okada, and some sources say that other Waltax cameras were made by Daiichi.
A wartime ad for the Waltax (visible in this page) showed a 4.5×6 folder copied on the Ikonta, with a folding optical finder, offered for ¥185, case in supplement for ¥7.70. The only company names that appear in the ad were Nihon Shōkai and Honjō Shōkai. Honjō Shōkai is mentioned as a wholesaler (本庄商会卸部), this company still exists as Honjō K.K. (本庄株式会社), a photo wholesaler (see the company history here).
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