Yup, that's the buckeye flower. I own two of these (why two, why not?) revolvers and they are extremely fun to shoot. The barrel is 6-1/2", which balances nicely in the hand. This got me into reloading, as both calibers were extremely expense to buy; the only one making .38-40 ammo at the time was Winchester Western. It's like having two different guns for the price of one...the 10mm is very "snappy" and the .38-40 is very "shootable". The 10mm cylinder has to be kept clean, as it headspaces in the cylinder and sometimes small bits of brass will clip off, making it difficult to load. I know that cylinders are not supposed to be interchangeable but I long ago stopped trying to match cylinder to pistol...they shoot out of both just fine.