I have some vintage Wharfedale speakers that likely predate yours. These have 12" woofers, 6" mids and 1 1/2" tweeters.
All have anilco magnets (red cover over winding) and the woofer has a label reading "W.12/FS MODEL 12/15 ohm".
FS stands for 'Felt Surround'. Not much more to these as far as model numbers go. The midrange, stock, had no label but was also 12 to 15 ohm. The tweeter says "Super 3 10/15 ohm". Apparently these were meant to be run full range with no crossover aside from a cap on the tweeter. However, I found two vintage Wharfedale crossover units made for these speakers that I have yet to try out. If you need more info, please email me. I have pics of my speakers online as I still don't know the model number. Yours, Bob.