Wayne 70 small window. This is my small window 70 with guts for you gut guy`s ( I usually gut them). In the past I did not have an interest but now think they are cool. Acording to the serial number it is a first year 1937 model. Most collectors already know they have cast window trim and large sight glass and side totalizer computers. I did notice a couple things that I have not seen on other 70`s. There is no vent louvers on the top and the vents down low on the side panels are small like a Wayne 60. I have seen small window 70`s with vents in the top so that got me thinking how many years did they make the small window. I included a picture out of the blue book so maybe members can figure out the date on their small widow 70 and post. Please let me know.