Here's seven of these underated barographs:
Main picture, clockwise from the top left:-
Maxant
Plath
Maxant
Negretti & Zambra
Pospisil
Richard Freres
Maxant
These are all working barographs on a weekly clock rotation and charts are available. Prices start at £185 each. These little gems are perfect for limited space - desktop, bookcase etc. Contact me for more information, pictures etc.
Note! the photo of the 3 barographs are descibed in more detail elsewhere on my website.