This came my way a few weeks ago & I don't have much information on it all all but thought I'd share. if anyone knows anything about this I'd love to hear more.
5 3/4" capped, 6 15/16" posted, 5/8" od at the cap lip makes this one big honkin pen. er..uh or marker as the case may be. This is the first & only one of these I've ever set eyes on so I have no idea where in the Speedry pantheon this one fits. I can se in the pic below that Sidney has a display of them on the desk that look pretty streamlined. This one has a flat top look to it on the double stamped (& reversed) barrel imprint, you can just make out Patent Applied For. I'm guesing this is one of the early BHR models, but I just dont know.
When you unscrew the section, you see a barrel stuffed full of what looks like felt packing/wicking material. I can't remove whats in there without destroying it so I'll just leave it as is. IMHO, The writing tip is pretty cool. It's a triangular 1/8" thick & 3/8" wide and made of the same felt material the Esterbrook Flomasters are made from. Thats about all I can tell you about the pen itself.
Next to a standard size 51 for a size reference.
I was doing some google prowling & came across this article on a site dealing with famous New Yorkers (I think thats where it came from at any rate)
1952: Sidney Rosenthal
Invents the Magic Marker New Yorker Sidney N. Rosenthal always enjoyed creating new gadgets. One of them, a brush that extended from an ink-filled glass jar, provided a clever way of writing on all kinds of surfaces, including plastic, metal, wood, cloth, and leather. In 1952, Rosenthal's firm, Speedry Chemical Products of Richmond Hill, began manufacturing Magic Marker felt-tip pens. Everyone from professional artists to schoolchildren quickly found uses for Rosenthal's versatile and innovative writing and drawing tool. In 1970, he sold the rights to the name "Magic Marker," making millions. In 1989, Binney & Smith, Crayola crayons' manufacturer, entered into a licensing agreement for exclusive rights to the brand name "Magic Marker." Other firms began selling similar items, with Carter's Inc. marketing a narrower pen with an aluminum tube in 1958. Papermate and Pentel soon followed. Rosenthal is shown here with his markers in an undated photograph. –Cynthia Blair
In the midst of the google searching I found several lawsuits filed by Sidney & Co. against Carters inks.
Heres a link to one of the cases. It's an interesting read on Just how to screw the competetion & rip off an inventor.