Cohen Optical | Gwulo: Old Hong Kong

Cohen Optical

I was in TST last week and I did something I had been thinking about doing for years.  I went into Cohen Optical and asked them who Cohen is/was.  It turns out that Mr. Cohen is still alive, he still owns the shop and he now lives somewhere in South America.  He apparently comes back to HK once a year to sign papers.

Does anyone know his story?  I see on the 1941 Jurors' List that there was a Maurice Cohen who was resident at the HK Hotel. If that's him, he'd be extremely old by now!