Curious about Remington 1903A3

[Ridolpho]

Attachment 31866Attachment 31867Attachment 31868Attachment 31869Attachment 31870Thought I'd add a few photos that capture the green parkerizing colour. To sum up the dope on this rifle:
1) March 1943 barrel date agrees with serial number (it's a 4 groove barrel in excellent condition).
2) Uniform light green parkerizing (including on bolt) indicates rebuild with no evidence of use post rebuild. Everything appears to be Remington but, as pointed out by an eagle eyed member, the bolt sleeve, which appears to be Smith Corona.
3) There is evidence of an earlier (dark parkerizing?) finish on the bolt handle which has the number 8 stamped on top, "R" on the underside, and some hazy numbers stamped on the back off the handle (5 & 6- see photo).
No responses have suggested anything about marks indicative of where or when the rebuild was done and I'm now a little nervous about the history of the gun. I believe I'll hold off on shooting it until I've located some headspace guages. Does anyone have any info about where proper rebuilds were done utilizing parkerizing of this distinctive colour (only Remington?)? Has anyone ever run into an amateur rebuild where this colour was achieved?
Thanks to all that responded to the original post. I'm a newcomer to Springfields but have started to get interested in them and have a couple of books on order.


Ridolpho

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