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A small circular frame is useful for marking linen or for any small work. This, formed of two hoops fitting closely one within the other, can be procured in wood, ivory, or bone, of various sizes, the one illustrated being about 6 inches in diameter. The material to be worked upon is stretched between these hoops like the parchment on a drum. These tambour frames, as they are called, are sometimes fixed into a small stand or fitted with a wooden clamp for fastening to a table; this frees both hands for work. These tambours cannot well be recommended; the material is apt to stretch unevenly, and a worked part, if flattened between the hoops, is liable to be damaged.
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