-------- Original Message -------- Subject: Re: 1930ish US Coast & Geodetic Survey charts Date: Fri, 5 Jun 2009 10:29:00 -0700 From: Jon McConnel <[log in to unmask]> To: [log in to unmask] References: <[log in to unmask]> Folks, The best place to look for the answer to this is the work _Shore and Sea Boundaries_ by Aaron L. Shalowitz and Michael W. Reed http://www.nauticalcharts.noaa.gov/hsd/shalowitz.html You'll need to see Volume 2, Part 2, Chapter 1, p. 92-95. http://www.nauticalcharts.noaa.gov/hsd/docs/CSE_library_shalowitz_v2p2ch1.pdf When there's a string of dates in the lower left margin of a chart (in this time period we're discussing), they each indicate a New Print Date for the current edition. Some small corrections were incorporated from the last print, but not enough to warrant calling it a new Edition. Jon McConnel On Fri, Jun 5, 2009 at 6:39 AM, Maps-L Moderator<[log in to unmask]> wrote: > -------- Original Message -------- > Subject: Re: 1930ish US Coast & Geodetic Survey charts > Date: Thu, 4 Jun 2009 09:45:43 -0400 > From: erno bonebakker <[log in to unmask]> > To: [log in to unmask] > References: <[log in to unmask]> > > > > Most likely the first number identifies the serial number of the Notice > to Mariners (a list of corrections and notices usually published weekly > also rendered with the year as 45/33- #45 of 1933) while the second item > is the date of the notice (12/9 would be December 9). Charts that have > been in use aboard ship will also often have additional handwritten > notes of late updates. the abbreviation LNM signifies "Local Notice to > Mariners" which are issued by the local Coast Guard District and contain > local and more ephemeral information BNM signifies "Broadcast Notice to > Mariners" which are radio messages transmitting urgent information such > as dangerous wrecks or extinguished lights. > > Erno > > On Wed, Jun 3, 2009 at 1:08 PM, Maps-L Moderator <[log in to unmask] > <mailto:[log in to unmask]>> wrote: > > -------- Original Message -------- > Subject: Re: 1930ish US Coast & Geodetic Survey charts > Date: Wed, 03 Jun 2009 12:21:26 -0400 > From: Edward James Redmond <[log in to unmask] <mailto:[log in to unmask]>> > To: <[log in to unmask] <mailto:[log in to unmask]>> > References: <[log in to unmask] > <mailto:[log in to unmask]>> > > > Joel: > > If the letters are in small font below the neatline in the lower > left corner they may be correction dates. There are, in some cases, > "large corrections" and "small corrections" and references to the > 'Notice to Mariners' updates. > > John 'Chartman' Cloud will be happy to embellish. > > Ed > > MODERATOR NOTE: John Cloud does not subscribe to Maps-L > > > > Maps-L Moderator <[log in to unmask] <mailto:[log in to unmask]>> > Wednesday, June 03, 2009 11:04 AM >>> > > -------- Original Message -------- > Subject: 1930ish US Coast & Geodetic Survey charts > Date: Wed, 03 Jun 2009 10:46:45 -0400 > From: Joel Kovarsky <[log in to unmask] > <mailto:[log in to unmask]>> > To: Maps, Air Photo & Geospatial Systems Forum > <[log in to unmask] <mailto:[log in to unmask]>> > > > > I am cataloging a few of these charts, and they are a good bit later > than things I usually handle. I was wondering about the entries often > seen in the left lower margins, often with a format such as "43-1/3; > 45-12/9", etc. I gather someone on this list knows what those printed > numbers mean, so I thought I'd ask. Most of the variants I'm seeing are > not currently in WorldCat, but even for similar charts that are, those > marginal numbers are not often listed > > Thanks in advance for any help.. > > Joel Kovarsky > > > > > -- > Regards, > > Erno R Bonebakker > 91 Park St. > Portland, ME 04101 > 207.871.0048 > e-mail: [log in to unmask] <mailto:[log in to unmask]> > please note new telephone number & e-mail > -- -Jon McConnel [log in to unmask]