The "agent" bought the rights to the Silca name and has created a 'retro-vintage-homage' pump that sells for...what was it> $400?
At least that's what I recall. Hope I'm wrong or that he's also in the business of supporting the old (and still viable) product in addition to indulging his designer wet dreams...
sorry, that comment went a little too "editorial", didn't it?
In any case, I'll look for a spare and PM me if you can't find anything in the free market.

Edit: ah yeas, it's the Super Premium Ultimate with rosewood grips and a $449 pricetag...but you can buy just a locking chuck alone for a mere $110. Should go nicely in your Manhattan condo garage next to the Tesla.
Sir.
http://www.coloradocyclist.com/silca-superpista-ultimate-floor-pump?{unescapedlpurl**&utm_source=bing&utm_medium=cpc&utm_term={QueryString**&utm_campaign=productad s&{criterionid**