Ruth Mentions Type II SG Stock marked OI/40A, Found OI 39 A

[painter777]

In War Baby, In the summing up Saginaw's Carbine Program,
In the stock section page 435, Larry mentions:

Type A, Variation 1 with the I cut Oiler Slot (Type I) was found with RMC 40 A

Type A (M1), Variation 2 with Oval Oiler Slot (Type II) was found with sling well marking of OI 40 A.

Type A (M1), Variation 2 with Oval Oiler Slot (Type II) was found with sling well marking with upside down U and a 7.

Type A (M1), Variation 2 with Oval Oiler Slot (Type II) was found with sling well marking with RSG and 9 A.

Type A (M1), Variation 2 with Oval Oiler Slot (Type II) was found with sling well marking with 75 E RSG

Type A (M1), Variation 2 with Oval Oiler Slot (Type II) was found with sling well marking with RSG 88 F

Type A (M1), Variation 4 with Oval Oiler Slot with modified slide clearance cut and was found with sling well marking with RSG 105 B. This one noted use during late production.

There is no mention of Serial numbers ranges to the letter/number codes I could find.
Which leads me to think he was just using observations from examples he looked at.
Am I wrong ?
Where was Larry heading with this information? Did he believe the letter/number codes used by Saginaw SG had some rhyme and reason to them, maybe a increasing number and letter as production moved forward ?
IF Based on increasing number/letter codes... Could these have been based on Deliveries as accepted by SG?
I've often thought the added markings could have been applied by a In House Stock Inspector at Saginaw, before assembly commenced in that stock. Assume they would have inspected deliveries and possibly used different gages and jigs to inspect them with. Maybe numbers/letters were related to order numbers/invoices. Letters to a inspection section and or shift.
I think back to the picture of a Robert Irwin worker checking the actions fit in a new made stock.
And would think SG would double check before wasting any labor on a stock to be found later to be out of spec


There is also no mention of the Type II TRIMBLE TN stocks that were used by Saginaw SG.
2 examples pictured below.

I'm asking because I happened across a older post here today from a member in Europe that showed his SG 3.37M that appears as Original.
His Sling Well is marked 1 digit below the 2nd example listed above of OI 40 A.

Here is SG 3,37 mil with OI 39 A in the Sling Well:










Has there been any Updates I'm not aware of with the Letter/Number markings found in Saginaw used stocks ?

Thx,
Charlie-Painter777

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[painter777]

1-S.G. Letter and Number Sling Well observations.
2-Stock Type (I, II, III)
3-Stock Maker's Letter Markings
4-Serial# if known
Its OK to post observations of loose S.G. Stocks

Any single digit in the Sling Well should be scrutinized for a weak stamp.


Number/letter. Stock Type. Stock maker. Serial # if available

6B High Type II RSG Serial# 3,256,01x
U7 High-TII (?) No Serial#
8A Type ? RSG Serial# 3,262,680
9A High-TII RSG No Serial#
34F High RSG 3,35 CCNL 341
39A High OI 3,37 NON COM
40A High- TI RMC No Serial#
40A High-TII OI No Serial#
41B High-TII TRIMBLE/TN+SG Ser# Unknown
SG and Bomb- High-Type II TRIMBLE TN Serial Unknown AA rebuild
43F High-TI RMC Ser# 3,348,822
45D High OI 3,38 CCNL 319
47E High-TII RSG No Serial# Stock Only
48D High (?) TRIMBLE TN/TSG 3,384 NON COM
49E High RSG 3,39 CCNL 319
51A High-TII (cut to TIII) RSG Serial# 3,328,8XX (?)
51E High-TII RSG No Serial# Stock Only
53E Low- Type III RSG Serial# 5,858,07x
62C High RSG 3,42 CCNL 308
75E High-TII RSG No Serial#
82E High- Type II RSG Stock Only
88F High-TII RSG No Serial#
102A Low- TIII RSG Serial# 5,861,526
105B Low RSG Only noted late production
105F Low RSG 5,56 CCNL 281
G105 Low RSG Serial# 5,866,260 COM CCNL 356

(?) Serial # when received. Not known if original to stock

**Mental NOTE: Need to check 2 COM's: CCNL 120 for SG 5,864,xxx
and NL 281 for SG 5,864,2xx **

****We need others to report on their SG Carbines. Or observations on loose S.G. stocks****

Include Sling Well markings-Numbers/letters along with stock makers markings.
Stock type: Hi-wood I cut- Type 1, Oval High wood- Type II, or Oval Low wood- Type III.
Serial number range.

All reports greatly Appreciated,

The Carbine Collectors Club

[painter777]

Post your findings here: SG Carbine stock markings-Serials
1-S.G. Letter and Number Sling Well observations.
2-Stock Type (I, II, III)
3-Stock Maker's Letter Markings
4-Serial# if known
Its OK to post observations of loose S.G. Stocks

I've added 4 more Thanks to Marcus.

Requesting any one with a S.G. to reply.
Observations from loose S.G. stocks gladly accepted.

Thanks All,

[lancerdg]

Type II
Trimble
TN

SG
Ordnance bomb on left side of sling cut.
Stock is on a AA rebuild.

[painter777]

SG Stock
Type II
Trimble
TN

SG
Ordnance bomb on left side of sling cut.
Stock is on a AA rebuild.

Lancerdg,

Is that stock stamped SG in the Sling Well along with the Ordnance bomb?

[lancerdg]

Yes, the SG is in the sling cutout.
I've been trying to post a picture for an hour with no luck. Followed the tutorial exactly.

[painter777]

Latest added,
Thx Lancerdg and Hunterman.
Every bit helps.