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1004181 Barographs by Philip R. Collins This book covers the early development of the recording barometer and its later evolution into the more usual barograph that was very popular in the 20th Century. Includes some details about care of barographs and many illustrations of variations - A must for any barograph enthusiast. 146 pages well illustrated....
1002510 Barograph ink - small bottle fitted with fine dropper dispenser, dropper top needs cutting to allow ink out. often lasts for over 20 years (some times 40!) Minimum order value is £20 plus VAT - this item cannot be ordered individually
1002500 Barograph nib, standard - (individually tested) These are the traditional type of wet ink nibs often used on old barographs. We can not be certain they fit any arm but we use them on practically all old barographs using one pen. Overall total length is almost 20mm, from nib centre to end is 17mm distance between the 2 clips is 13mm, the nib is...