If you watch eBay the Nichimo I-19 submarine comes up pretty regularly, however it is popular and prices of around $50 for mint boxed examples are common. I got mine for somewhat less as the box is (very) second rate.
It makes up into a nice size at 1:200, over 21" long. The moulding is clean and the parts fit well. Even the 'Glen' floatplane consists of nine parts. Instructions are in Japanese but present no difficulties and contain additional information on rigging aerials and other items. It has facilities to motorise it but with the exception of the prop shafts this can be left out and even if fitted doesn't compromise the appearance of the vessel at all, as long as you don't use the screws that hold the centre deck down for access to the battery compartment.
Placed alongside Nichimo's 1:200 Type IXC U-Boat it gives a clear indication of just how big these Japanese submarines were, apparently this also made them poor performers under water and relatively easy targets to detect and destroy.
I-19's main claim to fame is that she apparently was responsible for sinking the carrier USS Wasp, seriously damaging battleship USS North Carolina, and mortally wounding destroyer USS O'Brien, with a single spread of torpedoes.
Michael