----------------------------Original message----------------------------
Susan Greaves
Olin Library, Cornell
 
Susan:
 
The current edition-print dates for the sheets you asked about are listed below.
 
 
 I found only two new editions in the listing (and one sheet that was out of
stock in Honduras so I don't know the dates).  We just got back from Honduras
where we purchased some complete sets of 1:50,000 topos so this data should be
current.
 
 I've never bothered to compare new printings with the original editions to see
if there are any updates at all.  If you want to send me a copy of one of your
1st edition/1st printing sheets I'd be happy (and curious) to compare it with
one of the 1st edition 3rd or 4th printings to see if there are any minor
updates incorporated in the new printings.
 
Cheers, Russell Guy
Omni Resources
[log in to unmask]
 
2360-I (63)     4th printing 3-86       1st ed. 1963
2360-II (63)    3rd printing 11-91      1st ed. 1963
2361-II (66)    3rd printing 9-94       1st ed. 1966
2459-I (63)     2nd printing 5-73       1st ed. 1963
2459-IV (68)    new edition 4-91
2460-I (63)     2nd printing 4-86       1st ed. 1963
2460-II (63)    3rd printing 5-85       1st ed. 1963
2460-III (63)   out of stock in Honduras
2460-IV (63)    3rd printing 5-85       1st ed. 1963
2461-1 (66)     new edition 4-89
2461-II (65)    2nd printing 10-77      1st ed. 1965
2461-III (65)   3rd printing 3-90       1st ed. 1965
2461-IV (66)    3rd printing 4-92       1st ed. 1966