Originally Posted by meister
Is that a new form of nailing on the heels than the C&J normal pattern? Is this the 21st century change?
It's the mid-20th centuy standard: cheap shoes had all rubber heels, premium ranges all leather (reinforced with lots and lots of nails). By the mid/late 1960s (or so), all-leather heels were being replaced by leather and rubber combination heels, although EG did produce in the early 2000s the RLPL hoes with all-leather heels (presumably on RL's request, as at this point in time, EG did not produce their own range with this type of heel).
Someone asked about the age of the shoes, I would place them into the mid-60s as "elastic on instep" shoes (also available as a bootie-version) was quite a popular style which has almost disappeared (JLP had a museum calf version, maybe three years ago).
Here is JL (London) with their bespoke version: