ANTIQUE Sunbeam Mixmaster Drink Mixer Attachment. Boxed Set. Chicago Flexible Shaft Co. Branding.

An extraordinary find for the Mixmaster collector: this is an early boxed set of the Sunbeam High Speed Drink Mixer Attachment, complete with its original packaging and paperwork.
⚙️ What’s Included:
Drink mixer rod with paddle
Embossed Sunbeam glass tumbler
Original box marked “Made and guaranteed by Chicago Flexible Shaft Co.”
Fragile but intact instruction sheets
✨ Condition Notes:
Box shows age and wear, consistent with fragile 1940s packaging
Glass tumbler is clear, embossed, with only minor age wear
Paperwork is tattered but a rare survivor
Mixer rod clean and intact
Compatibility Note:
This drink mixer attachment was designed to fit directly into the beater hub of Sunbeam Mixmasters. Because the beater hub spacing remained consistent across the classic Mixmaster line, this attachment is compatible with Model 9 through the later Service Number series (1940s–1970s). Simply insert it into one beater hub, pair it with the included glass, and your Mixmaster transforms into a high-speed malt and milkshake mixer.
💡 Collector Note:
This boxed set predates the company’s name change to Sunbeam Corporation, making it a true piece of Sunbeam history. Collectors of early Mixmaster accessories and kitchen advertising ephemera will find this to be a highlight piece.
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