I recently repaired a pair Ser.#1511 & 1512. They were a right and left hand. The woofer cone is special with the added resin weight around the DC to lower its resonant frequency (by design). However, that won't affect the refoam job. The woofer is an Italian made RCF #L12P48.
You may want to think about recapping the mid and tweet sections. P. Snell used many bundled NPE caps that have now been well documented on the www as becoming problematic with age. The entire xover board is removable from behind a hidden panel located just below the mids.
You may want to think about recapping the mid and tweet sections. P. Snell used many bundled NPE caps that have now been well documented on the www as becoming problematic with age. The entire xover board is removable from behind a hidden panel located just below the mids.