The U-55 marked Fred Locke is a pretty scarce piece . The brown ones seem to come an infinite number or trimmer variations with no two ever being alike and several different marking stamps as well . The white ones are a true Fred Locke rarity with only two having been reported. These were first introduced in 1903 so their production run with Fred Locke markings was rather short being only about a year and a half total. Most I know of came out of northeastern Ohio except one of the white ones which came from the Minneapolis area.