These are such a pretty little set of vintage teeny weeny crystal glasses - they are unmarked - but I think that they might be Stuart Crystal.
Being Scottish - I would struggle with these miniature glasses- they are certainly most petite and possibly would be used for tasting or a little toast.
It remains a sweet little set of six matching glasses - they are very simple in design - with fine upright lines on the bowl of the glass, as photographed.
They are all in good vintage condition with no damage.
Each glass is 3 inches in height. The rim at the top has a diameter of 1 1/4 inches. The foot has a diameter of 1 1/2 inches.
With their diminutive size comes a diminutive price - have these listed at £3 each.
A great wee design set - they will be posted to you in the UK with Royal Mail Recorded post. This will cost £4.95 and applied to your order at the checkout.