The bottom label also has a number and this is the colour number.
How to store your embroidery floss/thread:
You can purchase these cardboard cards (or make your own)
Remove the paper wrappers from each end of the skein
Write the colour number on your card
Open the loop of thread, making sure that all loops are open. You will see down at the bottom that some of mine are still not opened yet
– I will fix these before I go on.
Tuck end of thread into slit in card
Wind thread onto card, spreading along the card and back
When finished, tuck end into other slit in card
Pop into your container (and watch your collection grow!)