Their is 21 engines that we know of and have seen them or talked to the owner that is on our list. Sorry to say about the patterns is that you only got a few patterns. And I can tell for a fact that the later patterns were sold for scrap. They were make out of aluminum. The patterns that are on the wall at janeville are mostly for the old style jumbo. Be cause the new style patterns were cast in alumium. I have the last jumbo to leave the factory in may of 1937. I have the railroad bill and the purchase bill from Harrison .Joe Drexelius purchased the engine new for the factory and also worked at harrisons in the fall and winter. I got the engine from him in 1973 and 1988 I got the engine that his dad got new in 1883 ser no 1007 a 10 H.P.