Swarovski crystal pin Dolphin rare signed swan

Rare. beautiful retired Swarovski crystal pin. No paperwork, box or bag. I used to throw those out as did not think important Signed with swan on back. Needs cleaned has been in a jewelry box A long time. Don’t remember ever wearing but may have. A friend used to give me Swarovski pins As she collected them and thought I should. 2 1/2” x 2” has clear, grey and blue crystals. Has an inlay that looks like a greenish brown. I have never worn the pin as far as I remember.