Box with Butterflies

In 1925 it was found like this near the Great Pyramid of Giza, Cairo, Egypt:

After reconstruction of the jewel box:

In color:

These objects are silver bracelets from Queen Hetepheres I (around  2600 BC) inlaid with turquoise, lapis lazuli and carnelian in the form of a butterfly. More details of  'G 7000X' at Digital Giza: here and here.

Wondering:

• Are all bracelets identical? 
• Why does someone want to have 20 identical bracelets? (Assuming that all two rows are full.)
• Did the bracelets belong to one person? For her use only?
• Did Hetepheres I - her mummie is missing - wear the four missing bracelets?
• What did the Ancient Egyptians "read" when they "saw" - mark that we have more senses - an butterfly? According to Haynes in 'The Symbolism and Significance of the Butterfly in Ancient Egypt' (Stellenbosch University 2013): freedom, re-birth and safe passage to the after-life. Source: here.

I found these on The Internet. They don't look like the originals. Copies?