I think this is this: https://lolibrary.org/items/ap-bow-tie-shirring-mellow-blouse
Bought second hand, worn once by me. Has a detachable neck bow. Condition is very good. GLITTERY BUTTONS. However please note;

-It was originally a bit more off-white coloured when I got it, maybe it could be the ivory colourway? But when I washed it, the overall colour lightened. So now it looks more like the 'white' colourway. I'm not sure though. Either way, it's white.
-Has a couple of very tiny faint marks (near the tails of the neck tie, and one little mark on the lower back of the blouse. Also very tiny faint mark inside on the underarms area)
-Neck tie needs ironing. I'm sorry I don't have an iron with me right now, only a steamer :'( It needs a real iron really.

Measurements:
Bust- About 72-92cm+*
Waist- About 66-90cm+*
Shoulders- 34cm

*This is the maximum I suggest. It has full shirring all round, which will technically stretch more than this. However, the shoulder/collar area is fixed size, so bear this in mind. I am bust 89cm, waist 68cm, bra size 32E, it technically 'fits', but would work better on someone less busty I think, it's a bit gapey!

I don't think it realistically goes up to the lolibrary stated max (b134.5/w125.5).

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