Hi, as I have said already in my postings, I work in a museum and art
gallery, being in charge of exhibitions.  The Christmas before last we
held an exhibition looking at toys and entertainment from 1839-1939,
including a Pianola, gramophones, music boxes and a Welte reproducing
piano.

We regularly use two methods to produce display material.  Original
literature is often offered on eBay auction: just look under Welte,
Duo-Art, Pianola, etc.  The adverts are reasonably cheap.  Either buy
them and just frame those, or I prefer to do the following :-

1) Enlarge using a laser copier, colour or black and white, or

2) Scan the pages.  Most are size A4; scanning should be done at high
resolution certainly; set the scanner at least at around 800-1200 dpi,
sometimes you might even have to scan at a higher resolution.  Save the
image as a TIFF file and write to a CD, as otherwise it will take up
most of your hard drive.

You should be able to find a specialist copy shop or print company to
print the output from the CD.  If possible, get them to use a light
fast ink and good quality paper otherwise, if in light for a long time,
it will fade and the colours will distort.  I have used this method to
blow up images to A0 paper size, which is quite large, i.e., A3 is
twice A4 and A2 is twice A3 and so on.

But do remember when copying from books printed within recent years
that _all_ material reproduced in the books, including the old adverts,
are covered by the books [compilation] copyright, even though at the
time the author used old adverts.  Just find the same advert in an old
magazine.

Hope this is helpful.

Jonathan Holmes
Penzance, U.K.