Hello
I used to use runes a lot. The first set I got were crystal but the problem I found is that I began to recognise the shape of the crystal and knew which rune it was and I found that influenced my selection.
I then found these pewter runes, all the same size and shape and the company logo, which was printed on the back, was sometimes upright, sometimes upside down, so you never knew whether you were going to pick a rune which would be in the reversed position. This was perfect as I then had no problem choosing runes as I didn't know what I was going to pick.
I understand if you want to try and find the rune set that was shown to you, but take a look at these pewter runes and see what your guide thinks.
https://www.stjustin.co.uk/product/casting-rune-set/
Patrycia