A die break. Its actually the second die break this obverse (O98T6-3) developed. Attached is an image of the propagation of die breaks for this obverse. On your coin you can just make out the die break adjacent to the right of 'I' in DEI.
If you are curious about other Canadian Victorian coinage, I am slowly building a die library at my Substack entitled "Classic Canadian Numismatic & Notaphily Research" It can be accessed by cutting a pasting richarddebruyn.substack.com
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use