I am picking up on this thread again after a lapse of about two+ weeks. During this period, thanks to the inspiration provided by the prior work of "jkjblue" and "1840to1940", and their tremendous efforts related to the Big Blue (Scott International Volume I), I have initiated an effort to develop an excel spreadsheet that could be very useful to Big Blue collectors. I have inserted below an image of part of the spreadsheet (see additional explanation below):
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This spreadsheet is designed to maintain an inventory of your collection and also calculate the catalog value. It has room for notes and comments. There are separate sheets for each of the countries "A" to "Z". To date I have completed the A countries and am well on my way to completing the B. I am using as the starting point
the fantastic research by jkjblue on the Big Blue (see his country by country checklists on his blog (Bigblue1840-1940.blogspot.com). I am then modifying his country "checklists" according to my version of the BB which happens to be 1943 (coincidentally the year of my birth!). Your BB album may have some differences (as has already been pointed out by jkjblue in his blog0. But changes can be easily made to the Spreadsheet.
Some notes on the spreadsheet below - please provide your comments as I am still in the very early stages of this and can make changes if appropriate.
Column B shows the year of issue (sometimes there is a difference between the Big Blue [BB] pages and the Scott Classic Specialized catalog, and you have to use your judgement - as I have - in selecting the year to put into the spreadsheet)
Column C has the stamp number based on the BB (the jkjblue blog provides such numbers). Sometimes the BB description can be satisfied by more than one stamp; the spreadsheet (SS) provides the options. When the BB shows a blank space, the SS provides suggestions for the stamps that might best fit in that space.
Column D is for "notes". The notes may include a description of the stamp series (such as King George V, or Air Post, or Postage Due) and any other notes such as what stamps may fit in a blank space.
Column E ("My Collection - Scott No.") is for the collector's inventory. Here you specify which stamp you have in each space.
Columns F & G are for checking whether the stamp you have is mint (unused) or used.
Columns I, J, and K are for the cat values. The total column in K is there in case you have both mint and used (as I do in a few cases) or when you may have multiple stamps of the same kind, in which case you can put a number rather than a check mark in F or G and get the total cat value.
Column L is for comments. I am planning to use this column to make notes to myself such as when I have an incorrect stamp in a space, or when I have a used copy that I would like replace with a mint, or when I have stamps that do not have spaces in BB but I have included them in the album anyway, etc.
At the bottom of each country are totals (no of stamps, cat value) and % completion relative to the BB spaces.
Having started this, I realize that this is a massive undertaking, and expect that it may take a long time (perhaps several years depending on how much time I can devote to this). But when completed, I can make it available to BB collectors.
In the meantime, if anyone out there would like to help with this undertaking, I would certainly welcome this.

Comments are welcome.
