1903 Bolts Question Mark I ? RIA ?

So I spent all yesterday on John Beards site trying to figure these out, But I got nowhere.

This bolt's from a presumably Original Mark I. sn 1194025 brl 1-20.
Reciever's got that black paint like finish on the receiver.

https://www.milsurps.com/images/impo...ture2018-1.jpg
https://www.milsurps.com/images/impo...ture2008-1.jpg
https://www.milsurps.com/images/impo...ture2007-1.jpg


The other bolt Is from another presumably original R.I.A./SA "Cleanup" gun, SN RIA 424958 Brl SA 8-28 Stright bolt handle. Extractor has the letter "S" stamped on the bottom. Trigger is serated.

https://www.milsurps.com/images/impo...ture1998-1.jpg
https://www.milsurps.com/images/impo...ture2012-1.jpg
https://www.milsurps.com/images/impo...ture2013-1.jpg

Do either of these rifles appear to have the original bolt???

Thanks!!!

Todd