I did some work cataloguing these Pachuca drafts a number of years ago, using such resources as the CPMS Journal and images from Don Olmstead. I will give my findings below, which may save someone the trouble of doing it all over again.
REAL DEL MONTE & PACHUCA CO. DRAFT ISSUE
This issue consists of drafts, denominated in Mexican pesos, payable to the bearer and drawn on the Bank of Montreal in Mexico City. The issuing company, The Cia. de Real del Monte, was involved in real estate and mining. The company was a customer of the Bank of Montreal, and circulated these drafts during a period of revolutionary upheaval.
The "notes" have no engraved portions, nor do they have any vignettes. There is a decorative panel near the left end of each note.
The backs may bear a cancelled revenue stamp or a rubber stamp by the Pachuca postal administrator. The back text outlines the terms under which the notes were redeemed. Additional overprints relating to the revenue stamps occur on the backs of some notes, in black or red.
The notes are 5 1/2 inches long and 2 3/4 inches wide.
There were two different issues.
FIRST ISSUE
Imprint:
Bouligny & Schmidt, Mexico City
Signatures:
left right
printed, C. W. Van Law printed, D. S. Colland
Issue Dating:
1915: various (Feb. to June), rubber stamped
Overprint (on back):
text, dated February 18, 1915, in black
text, dated February 24, 1915 in red
$1 1915 Series A
$2.50 1915 Series E
$5 1915 Series B
$10 1915 Series C
$20 1915 Series D
SECOND ISSUE
Imprint:
Tip Artistica
Signatures:
left right
mss. D. S. Colland mss. M. A. Doak
Issue Dating:
1915: 28 May, rubber stamped
$5 1915 Series L
$10 1915 Series N
$20 1915 Series M