Chicken Tracks

   Here are two examples of what have been called chicken tracks, for obvious reasons. Trying to determine which precancel overprint it is and how many there are is a difficult task with these, but after careful measurement, viewing with a X10 magnifying glass and comparison with examples of single impressions of  types K, L, M and N, I have taken my best guess.Many of the early bar types can be difficult to identify especially if they are light impressions.