-------- 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