So to complete a stamp album with preprinted pages what does one need as guidance?
As a european and living in France THE catalogue used here is Yvert & Tellier.
I was made aware by Jim that there exists a special catalogue by Y & T related to 1840 - 1940 period: Classiques du monde.
Very nice but a little bit out of reach for my purse.
That gave me the idea to work with some older catalogues and I came up with the idea of working with catalogues I was able to acquire and were issued as close to the 1840 - 1940 period.
So I was able to acquire an Yvert & Tellier catalogue des Timbres du Monde issued in 1940.
It's the last one which was issued as a hard bound copy with the second world war and paper scarce the 41-45 editions are not very beautiful at all.
The 1940 mentions stamp issues till 1938/1939 so that's ok for me.
Then of course I needed to have a Scott's catalogue because otherwise my classification of the stamps would become more than difficult.
I found a 1943 edition of Scott's Standard Postage Stamp catalogue - Combined Edition.
So here came in an american philatelist and correspondant, John. I let the catalogue be send to him and he was so kind to send it on.
By coincidence I stumbled on a small book containing a pricelist related to the USA - CSA - Canada stamps and which was released in 1964.
It contains a lot of stamp pictures and has Scott's numbers so that's a nice addition (for me) as well.
Then last but not least there's Big Blue's checklist as established by Jim Jackson and put into a pdf by Chris Whitehouse. My thanks go to them for their work since it really is a wonderful instrument to use when searching / looking for stamps to put in Big Blue.
For anyone interested, the checklist is available here at Big Blue 1840 - 1940.
Here's my copy.
So these are the worktools I will use to check and verify when acquiring stamps to complete my Scott's International Part 1.