Yeah, I THINK those are W60's, but they could be W40's or even the extremely-rare W50, which was a very-short-lived early '60's model. I have yet to see a pair myself. How big is that woofer? Is it a 12" or an 8"?
They should have all alnico drivers (The red banded magnet structure is a dead giveaway for these). Back in their day, these alnico Wharfedale models competed with speakers from AR, Altec, Jensen, University, and others. They were very-well-respected and sold in large numbers. They don't have the heavy bass of the AR3, but it's a more-natural sound. Rich midrange and non-strident highs. I would avoid using a modern polypropylene cap on that tweeter. For whatever reason, these alnico Wharfies do not agree with poly caps from the likes of Dayton or Solen. They add a glare to the sound that should not be there. If you have a n.o.s. oil cap from the '50's to early '60's (from say Sprague, Sangamo, G.E., and other US brands), that should do the trick. If no oil caps, then I would try a cheap, modern-day electrolytic cap (rather than a polypropylene).
Whatever the case, you want to get some tubes powering them. That or a tube-like solid-state model like the Sansui 1000x, 2000, 2000a. That's how to make them shine. They are only rated for like 30wpc, so easy on the power. They can be used vertically OR horizontally. Just make sure the tweeters are at eye/ear-level and also make sure both speakers are equal distance and pointing directly at you (Pitch/axis included... If they need to be angled up or down at you, do it). And be exact. Use a tape-measure and get those distances perfect. Those speakers will reward you for it.
