The obverse shows part the right maple leaf under the king's chin. The reverse shows the nose of the king go from the tip of the leaf to the bottom of the 'C'. It also shows the gap between the king's chin and chest appear on the left side of the leaf.
I checked coinsandcanada.com, they don't have any images yet but they will follow soon.
They should be on all years 1920-1936. The years I have are 1927, 1928, 1929, 1931. 1934 and 1936. Also spotted clashes on 1904, 1906(on eBay) and 1907 for the silver 5 cents. There are plenty of Queen Victoria clashes shown in books.