Fake or Real Manchoukuo Coins? Does anyone know these coins? Manchoukuo (Manchuria) Y #6, Year 3, 1936, Bronze Manchoukuo (Manchuria) Y #6, Year 3, 1936, Bronze (Slight Brass Color) Manchoukuo (Manchuria) Y #13a, Year 12, 1945, Red Fiber
According to my 2011 Catalog of Japanese Coins and Notes (JNDA Catalog), your coins match up well with the illustrations in the book. The retail prices of the two copper coins are listed at between 100 and 300 yen (100 yen = $1.25), while the red fiber coin is listed at 800 yen.
I agree with Siberian Man and Moneyer 12. You might have trouble duplicating them at the prices in the JNDA catalog. Prices on Japanese occupied Chinese areas have been soaring recently.
Not all prices for occupied China coinage are soaring. This lot of 8 Manchukuo coins, for example, recently sold for just 600 yen. http://aucfan.com/aucview/yahoo/m91180751/
Actually 7 WW II-era Manchukuo coins and a modern Japanese yen. Wish I'd known about that auction - I would have paid more than the hammer price just for the aluminum 10 fen!
Admittedly I didn't take a close look at the lot, just saw the close-up and assumed that the whole lot was Manchukuo coins. At any rate, Manchukuo coins still seem to be selling for relatively low prices here in Japan. There's a big coin show coming up next month in Tokyo-- maybe I'll look around and see what's available there.
Here's another example of what I'm talking about-- 1934 Manchukuo 1 chio coin that recently sold for 160 yen.