What do you mean by bookshelf? Non floorstander -- in which case a lot of big speakers like AR LSTs and Advents and so on qualify -- or small speakers that actually are made to be on shelves (even if that's not the best place for them)? If its the latter, as I imagine, than the Dynaco A 25 is, indeed a great suggestion, and of course, EPI/Genesis etc. Even smaller, and perhaps more easily found in Australia would be the Mordaunt Short Carnivals and Pageants -- I picked up a pair of Carnival IIs and am delighted with them. Smaller yet, the Burhoe Crimson is surprisingly full throated, though it may actually be early 80s.
But there are many others out there, and there are geographical differences in taste and ubiquity.