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Title: Four specimens of BB and Expamet lathings:- No [Go to resource]
Description: Four specimens of BB and Expamet lathings:- No. 256 1/4" mesh, No.26 1/4" mesh, No.252 3/ 8" mesh, No.1 3/8" mesh, mounted on polished wood base License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1936-75 Go to resource More Like this...
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