-------- Original Message --------
Subject: Thos Bros date codes
Date: Sun, 20 Jan 2008 14:14:44 -0800 (PST)
From: Kevin Walsh <[log in to unmask]>
To: Maps-L
Hi -
Their older (1940-50s) date codes were similar to those of ACSC;
generally, a numeric code (hidden down in a corner inside the border)
read backward.
EG, 954 would be April 1959. Up thru the 1930s, codes seem to be lacking.
In the 1960s and 1970s, they'd show a long string of hyphenated numbers,
from which you could pick the month and year out rather easily.
Cheers,
Kevin Walsh
<http://us.rd.yahoo.com/evt=51733/*http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ%20>