Who Am I? Trivia Question

Trivia Question: 
We all know dating Mexican Silver can be a challenge, here's the question:

From what year to what year (approx.) was Mexican Silver stamped with an eagle mark?
What kind of markings were used after the eagle mark was discontinued?

Answer: 1948-1980 and Registration Numbers were used after the eagle marks were discontinued
Winner has been notified.  Stay tuned for the next jewelry trivia question and thanks for playing!

Know the answer? Post it in the chat window, one correct answer will win a small prize, thanks for playing!

~~~ ANSWERS TO SCRAMBLED DESIGNER NAMES, WINNER HAS BEEN NOTIFIED~~~~

1. ZIRAONGA
GRAZIANO

2. FARIIRT
TRIFARI

3. RELFZAON
FLORENZA

4. KCIIFARTVNG
VIKINGCRAFT

Last Trivia answer (no one got it)
Answer: Nettie Rosenstein
Sorry, no winner this time, look for our next trivia contest in Dec.

Next Trivia contest

Who Am I?

I was born in Austria in 1890 and emigrated to the US in 1892.

I had my own company in 1921 that employed 50 seamstresses.

I started manufacturing costume jewelry in 1942. One of my most noteworthy pieces from this time was a brooch over 6" long.

My pieces were always made with the utmost care and quality.

By the end of the 1950's, I concentrated on designing accessories and costume jewelry.

I retired at the end of the 1960's and passed away in 1980.

WHO AM I?

Past Trivia:
What is "bridge jewelry" usually made of and why is it called "bridge jewelry"?

One correct answer posted in the chat window will win a small prize. Good luck!

Congrats to Anna F. from Dayton, OH:
"Bridge Jewelry is usually sterling silver, it's the "bridge" between costume and fine jewelry."

Thanks to all who played!

~~~~~ LAST TRIVIA Q & A ~~~~
~~ WINNER HAS BEEN SELECTED ~~
Dinah at http://www.capriciouscrowns.com

The first picture is a trembler brooch from Coro.

The blue rhinestone brooch is a Trifari.

Your mission is (should you choose to accept it) to find the patent numbers and the name the patent is assigned to for both pieces.
One correct answer posted in the chat window will win a prize. Good luck and have fun!

~~~ WINNING ANSWER:

Patent#121735
Date: 1940
Item: Brooch
Owner: Coro
Inventor: Verrecchio, Gene

Patent #169206
Date: March 31, 1953
Item: Brooch
Owner: Trifari, Krussman & Fishel Inc.
Inventor: Philippe, Alfred

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