Online resources on issues of Mexican Revolution 1913-1916

[SWH]

I am currently researching the postal history of Mexico for my site www.stampworldhistory.com. And, I am looking for information on the stamps issued during the period of the Mexican Revolution 1913-1916. I know the most important resource would be Nicholas Follansbee's 'Stamps of the Mexican Revolution 1913-1916', but that is only available in hardcopy - and somewhat beyond my budget.



Does anybody know good online resources on the subject?

[ChickasawStampMan]

Here are three sources:

play.google.com/store/books/details?id=djXZAAAAMAAJ


www.firstissues.org/ficc/details/mexico_1.shtml


mexico.ameridane.net

[SWH]

Thanks, ChickensawStampsMan. Looks like great reading material.