Yes that's what mine look like.
When did you work for Tannoy? These, and their predecessors the Monitor Golds, were their flagship. They proved too expensive to manufacture (the hf driver fires through dozens of exponential holes in the magnet, then the cone continues the exponential curve so the hf from 1kHz up is horn loaded, very sensitive and thereby suffers less from thermal compression) so they dumbed down with the DC2000, still dual concentric but with separate hf unit. Then they did the Mercury and other bog standard boxes.
They recently(ie this century) reissued the hpds for staggering prices.
They have a unique sound that doesn't appeal to people who like Beats headphones, i think the average age of a tannoy hpd owner is similar to the Basdchat mean, but I wouldn't swap them for ordinary boom and tizz boxes.
Other fan boys here:
https://www.hilberink.nl/speaker.htm