This is in my opinion the best designed Mexican banknote since the 1925 Gypsy 5 peso note. There are a few Porfiriato era private banknote isses that feature trains. The 5 peso Banco Peninsular Mexicano note comes to mind and that is still available at a very reasonable price in high condition. I'll look in my duplicate banknote wallet and see if I have an extra one and perghaps we can do a trade for one of those too.
Regards
chris bolton