Yes and no.
Al Baker's salt shaker is a gimmicked shaker that shares some similarities to the later Vernet Ethereal Salt , but is superior in my opinion. Both are essentially a "Milk Pitcher" principle .
Vernet's Ethereal Salt shaker suffers from a design/logic flaw , which is that when the salt is poured out of the shaker the cap is not removed from the shaker . If you think about it that is a very awkward way to pout salt out of a shaker . The natural way is to remove the cap entirely, then pour or dump the salt into your hand or a hankerchief prior to vanishing the salt. A sort of acceptable compromise with the Ethereal Salt shaker is to mime "shaking" the salt out and do it very gradually , as it would take a bit of time to actually shake out all that salt . Then after all the salt has been shaken out show the shaker empty and go on with the vanish.
The Baker salt shaker , by contrast is very clean . Just take off the cap and pour it into the closed fist . Then vanish the salt.
However , the Baker shaker does not have the ability to have the salt reappear in the shaker like Vernet's , so there are strengths and weaknesses to both versions.
Vernet's also used to be more valuable in that they supplied you with two shakers, a gimmicked one and an identical ungimmicked one , which opened up more possibilities for routining . The ungimmicked one could be shown , then switched out for the gimmicked shaker . Unfortunately, the Vernet Co. no longer supplies the trick with an extra (ungimmicked) shaker . You only get the gimmicked one .
The Vernet shaker design is unique to their trick, so it is not a commonly available design that can just be picked up anywhere (like at Target, or Bed, Bath , and Beyond, the world's greatest magic shops) . Baker's uses a common design, so an ungimmicked shaker can easily be obtained and used in conjunction with the gimmicked one.
Martinka's Auctions had an Al Baker model up on auction recently . Here's a link that should still be good . As you can see it is the "classic" glass shaker design . The part that is difficult is making the gimmick so it fits the inside . Al Baker-style Salt Shaker
Baker's method could also be applied to a shaker design that is more of a straight cylinder (parallel sides, instead of sloping).
Not quite as effective as that "tall" sloping sides design, the classic salt shaker seen in thousands of coffee shops and restaurants . The taller shaker seems to hold more salt , so it gives the illusion a little more punch when all that salt vanishes from the hand .