Regarding miniature portraits:

    Can you give us some additional information?  Are these portraits
    on ivory, porcelain, canvas, wood?   Are they framed--and with
    glass?

    They do not necessarily need to be wrapped in acid-free tissue.

    I have seen portraits on ivory laid flat in drawers or hung on
    walls.  I would suggest drawers if the paintings are on ivory as
    ivory tends to respond dramatically to humidity changes.  Drawers
    have the added feature of creating one more micro-climate--slowing
    down the affects of any climatic changes in the store room from
    reaching the miniatures.   Also, some of these portraits can be
    light sensitive--another plus for drawers.


    Hope this helps.

    John Handley