I just purchased this scraper and was wondering if there could be any information available about it such as an operating manual. It looks pretty simple to operate with two levers. There are some videos, but I cannot find one using a 3-footer like this one. But I think they all operate similar. The patent is dated 1940 which is after Deer purchased them. I am surprised at the condition it is in. The scraper blade is in very good shape and is reversable like the blade edge on a push blade. Coming from the Southwest helps because rust out there is not like here in the Northeast. It still has some original green paint which I may change to red or blue to match my implement colors.