I bought this grain drill/seeder farm implement at an auction. Can anyone ID it and tell me more? Like age, maker, correct name of implement, what it was designed to plant. I need to give a history of it at a mule show. Also, right in front of the chute that drops the grain is a broken stem. What was this/what did it look like (in case I fix it)? There is no maker on it, but all the part numbers start with "LD" or inside seeder is "CP." Thank you VERY much.