Foot Guards Officers' pips

Hi,
I am interested to know about pips of foot guards officers. After 1880, when did bath star change to corresponding regimental stars like garter star, shamrock star etc.
Cheers
Sham

Firstly the Dress regulations for the period, 1830’s, are harder to find than snowballs in hell.
As far as I’m aware, stars on the shoulder strap were worn for maybe sixty years before anyone decided to regulate them.
Some of the earlier stars had from six to eight points and could include the Order of the Garter and the Order of the Bath.
If I could find a copy of the 1830/31 regulations, or the General Orders for 1830 they may actually state the type of star.  
Or if like many of the other regulations they just state 'star' without giving any clarification, it's difficult so say if and when any change of device did occur.
Carmen mentions that in the General Order of August 1830 the star for officers rank should be the Order of the Bath, unless a regiment was authorised to wear the National Badge.
So I would imagine that the Grenadier, Coldstream and Scots would have worn the appropriate badges from the date of this order.
So after 1880.
The Grenadier and Coldstream Guards the Order of the Garter and Scots Guards the Order of the Thistle.
The Irish Guards in 1900 used the Order of the Garter and later after WWI the Star of St. Paterick.
The Welsh Guards use the Order of the Garter.

I think it's correct so it's probably wrong

Regards
WF

Hi wfrad,
Thanks for your reply. I have gone through with DR 1904, 1911 and 1928. In DR 1928, it is mentioned the special pips for the foot guards regiments. I have attached the rank badge mentioning pages of DR 1904, 1911 and 1928.
DR1904:
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DR1911:
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DR1928:
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Besides, Rudyard Kipling's son 2/Lt Jack Kipling (http://en.wikipedia.org/wiki/John_Kipling) was the officer of Irish Guards. He was died in 1915 in action. His picture is also attached. The pip was bath order.
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I think British army introduced special pips for foot guards after great war.
Cheers
Shams

Shams,

wfrad wrote:
The Grenadier and Coldstream Guards the Order of the Garter and Scots Guards the Order of the Thistle.
The Irish Guards in 1900 used the Order of the Garter and later after WWI the Star of St. Paterick.

Typo, should be;
The Irish Guards in 1900 used the Order of the Bath and later after WWI the Star of St. Paterick.

The pages are a little small to read, I assume that they just state star, then if an image is available in the annex they then direct you to that image.

Regards
WF