Geographic type ticket showing the destination in words as well as numbers. The 698 ran from Woolwich to Bexleyheath via Abbey Wood and Erith. The sister service 696 from Woolwich to Dartford via Welling and Bexleyheath. 

These routes were the only two in SE London, a little island cut off from the rest of the network. 

For more on these Trollybus routes, the trams they replaced and the buses which followed
click here

Thanks to Steve for tickets