RSG Stock?

[frankderrico]

Charlie I know you are packing and getting ready to leave. If you have time can you tell me about this. I picked up this stock and on initial cleaning found this stamp in the barrel channel. I know it was dicussed before but don't remember the meaning. Any help would be appreciated.....Frank

Attachment 14140Attachment 14141

P.S. have a good time on your R&R

Information

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[painter777]

Hi Frank,
Need a break anyway......... bathroom sink drain started leaking....
Here's a picture of my RSG Type II with the I and inland size CC.
The markings have more of a Purple-ish-GREEN look on the Inland used stocks. These thought to be that Julian type dating system...




Here are 2 RSG stocks, both type II that were used by SG, and marked and CC'd as such.
The color isn't as green like on the Inland stocks. More of a Blue/Black....


Don't recall if this was a Dating system used by the Irwins, thinking production and inspection markings.
I have some notes on these, I'll try finding them when I get back.


Take care,
Charlie-painter777

[PBI]

They are Julian date codes. How they are determined is above my pay grade. In astronomy, a JD is defined as the contiguous count of days from January 1, 4713 B.C., Greenwich Mean Noon (equal to zero hours Universal Time). The fraction of each day is represented as a decimal number. Hence noon (GMT) on January 2, 4713 B.C. would have JD 1.00000, 6.00 pm GMT on the same day would have JD 1.25000 and 6.00 hours Universal Time would have JD 2443509.75. Simple, right?

Well, not quite so simple. The irregularity of the conventional date system makes the date conversion formulae to find JD's rather tedious and complicated,I am in no position to derive these formulae myself.

Also you may ask, what's so special about January 1, 4713 B.C.? Well, according to Kevin Bourque, this day was chosen because, amongst other reasons, it is the most recent day in which the year began on a Sunday with a full moon. In addition, Kenneth Silverstein points out that the Julian Day count was:


1) developed by Joseph Justus Scaliger in 1583 (1 year after the institution of the Gregorian calendar),

2) named by Joseph in honour of his father Julius Caesar Scaliger, and

3) day 1 was chosen as January 1, 4713 B.C. because the Julian Calendar, the Lunar Calendar (corresponding to Kevin Bourque's point) and the Roman Tax Calendar all coincided. This happens every 7,980 years, so the next coincidence will be in 3267 A.D.

According to one of my professors, there are hardly any scientific records of astronomical phenomena prior to that date anyway, so it seems like a good starting point.

[Bill Hollinger]

Paul??? Why? And you were doing so good too!

[frankderrico]

Paul, you lost me.Can you explain it again?.....Frank

[Bill Hollinger]

Frankie, lets you and I go sit on the group "W" bench!

[PBI]

They are Julian date codes. How they are determined is above my pay grade. In astronomy, a JD is defined as the contiguous count of days from January 1, 4713 B.C., Greenwich Mean Noon (equal to zero hours Universal Time). The fraction of each day is represented as a decimal number. Hence noon (GMT) on January 2, 4713 B.C. would have JD 1.00000, 6.00 pm GMT on the same day would have JD 1.25000 and 6.00 hours Universal Time would have JD 2443509.75. Simple, right?

Well, not quite so simple. The irregularity of the conventional date system makes the date conversion formulae to find JD's rather tedious and complicated,I am in no position to derive these formulae myself.

Also you may ask, what's so special about January 1, 4713 B.C.? Well, according to Kevin Bourque, this day was chosen because, amongst other reasons, it is the most recent day in which the year began on a Sunday with a full moon. In addition, Kenneth Silverstein points out that the Julian Day count was:


1) developed by Joseph Justus Scaliger in 1583 (1 year after the institution of the Gregorian calendar),

2) named by Joseph in honour of his father Julius Caesar Scaliger, and

3) day 1 was chosen as January 1, 4713 B.C. because the Julian Calendar, the Lunar Calendar (corresponding to Kevin Bourque's point) and the Roman Tax Calendar all coincided. This happens every 7,980 years, so the next coincidence will be in 3267 A.D.

According to one of my professors, there are hardly any scientific records of astronomical phenomena prior to that date anyway, so it seems like a good starting point. These date codes are used by the automotive indusrty alot when they date the engine and other parts of the car when in production.

[Bill Hollinger]

Paul, again???

[Rustship]

Paul, one more time

42-36-1A

[PBI]

They are Julian date codes. How they are determined is above my pay grade. In astronomy, a JD is defined as the contiguous count of days from January 1, 4713 B.C., Greenwich Mean Noon (equal to zero hours Universal Time). The fraction of each day is represented as a decimal number. Hence noon (GMT) on January 2, 4713 B.C. would have JD 1.00000, 6.00 pm GMT on the same day would have JD 1.25000 and 6.00 hours Universal Time would have JD 2443509.75. Simple, right?

Well, not quite so simple. The irregularity of the conventional date system makes the date conversion formulae to find JD's rather tedious and complicated,I am in no position to derive these formulae myself.

Also you may ask, what's so special about January 1, 4713 B.C.? Well, according to Kevin Bourque, this day was chosen because, amongst other reasons, it is the most recent day in which the year began on a Sunday with a full moon. In addition, Kenneth Silverstein points out that the Julian Day count was:


1) developed by Joseph Justus Scaliger in 1583 (1 year after the institution of the Gregorian calendar),

2) named by Joseph in honour of his father Julius Caesar Scaliger, and

3) day 1 was chosen as January 1, 4713 B.C. because the Julian Calendar, the Lunar Calendar (corresponding to Kevin Bourque's point) and the Roman Tax Calendar all coincided. This happens every 7,980 years, so the next coincidence will be in 3267 A.D.

According to one of my professors, there are hardly any scientific records of astronomical phenomena prior to that date anyway, so it seems like a good starting point. These date codes are used by the automotive indusrty alot when they date the engine and other parts of the car when in production.