This is a one-off pattern test model made by HRB Harubang of Seoul in 1995. Made out of lost-wax cast brass parts, HRB Harubang evaluated the production of these models...
This model was offered for sale at the 2011 Schwanheim Airline collectibles show in Frankfurt Germany on Saturday, November 5, 2011. Asking price 80 EUR. It did not sell.