Dating rand mcnally maps
All updates are completed using the Rand Mc Nally Dock.The Rand Mc Nally Dock is a software application you download and install on your PC/Mac.
We recommend you dock your device every 30 days to ensure you have the most recent updates.The codes are generally publication dates jumbled in a certain, consistent way that are often preceded by the letter C, although this is not always the case.Maps from the 1930s will often have three-digit codes containing just the month and last two digits of the year, generally in that order; 336 = March 1936, for example. 15 1957 (date  last two digits of year reversed [75 = 1957] month ) 124511 = Nov. Clason maps are notorious for having no date information.The first map to really distinguish the company was Rand Mc Nally & Co’s New Railroad and County Map of the United States and Canada, published in 1876.This map formed the basis of numerous further publications, since it could be broken down to show different states or regions.I think the best example of a map series using Rand Mc Nally map codes is the SOHIO Ohio map series.
SOHIO used Rand Mc Nally maps from 1924-1926, 1930-19-1985.
Take the last two digits of the last four numbers and invert them, e.g., 3680 1209R = 1990.
Do not confuse with the stock number, which is also in the same vicinity.
Within the next few years, the shop got into the railroad business by starting to print railway tickets and schedules, a key step in the development of the company.
The ticket printing led to the publishing of railway guides, and by 1872 Rand Mc Nally and Company had the capacity to publish maps.
Map codes are in very small numbers and letters and are located on the bottom line of each map.