duszność konwergencja uroczy pit saw Poddanie się Oblicz wzmocnienie
Pit Saw
Whipsaw - Wikipedia
Wooden Boat Museum on Twitter: "A pit saw is a large, two-person saw used to cut tree trunks into rough plank. #MuseumMonday #Artifact #PitSaw #NLHeritage #ExploreNL https://t.co/lfWAX9d3jd" / Twitter
Pit sawing hi-res stock photography and images - Alamy
Eighteenth-century pit saw. | Louisiana Digital Library
BeechCreek Timber Co. - The pit saw was a very long two man saw designed to be used up and down instead of horizontally. Sometimes one man stood on a raised platform