Ed,
There were a good number of these judging by how many come up on eBay from time to time. I have one, too. Unfortunately, the number on the cab is not correct, as it should read 5244, not 9844. The 9844 was actually a 2-8-0, not a B6 0-6-0. Prices on eBay seem to range from $20-$65.
Tom