Here's a great example from the second Modesty Blaise story, The Long Lever from 1964. Key episode as Modesty clobbers Willy with her kongo. Beautiful shots of Modesty and Kossuth in the final panel.
Board size is about 21.125 x 7.5 inches with an image area about 19.625 x 5.625 inches. Skimmed, as usual for Holdaways. Corners of the board are chipped, as you can see in the scan.