This product is an authentic and original painting by Bob Ross, created in the 1980s using oil painting technique. The artwork produced during this time period reflects the distinctive style and techniques used by Bob Ross during that era, making it a valuable and collectible piece for art enthusiasts. The certification of authenticity ensures that this painting is a genuine piece from Bob Ross' original creations, adding to its value and appeal to collectors of his work.   The canvas measure is 16X20 inches and the measurements with the frame are 20.75X24.75 inches.