These are possibly from the 1920/30s , they are all in good condition considering how old they are. I think if these were cleaned and sharpened, they could be used for many years . The Largest one is 320mm in Length The Next one is 293mm in Length The Next is 270mm in Length Next is also 270mm , however it is slimmer The last 2 are 260mm in Length As soon as Payment has been made these will be Well Wrapped And Posted off First Class.