Gauss Medallion

Hello and Good Day to you -





I am trying to learn more about the Gauss Medallion pictured here, handed down to me through the generations. This medallion was struck by Brehmer in 1856 in honor of the death of my Great Great Grandfather Carl Friedrech Gauss, the famed German Mathemetician.

http://library.thinkquest.org/22584/temh3001.htm
Gauss died in his home at the Gottingen Observatory on February 23, 1855, and right after, the King of Hanover ordered that a commemorative medal be prepared in honor of Gauss. This seventy-millimeter medal was completed by the well-known sculptor and medalist, Friedrich Brehmer, of Hanover. On it appears the inscription:

Georgius V. rex Hannoverge

Mathematicorum principi

(George V. King of Hanover

to the Prince of mathematicians)

What I am trying to find out precisely is how many of these medallions were made?
It is silver, about 5.2 ounces. I know that there were at least 2 - mine and one Brehmer made of bronze - please see this link -
http://www.joh.cam.ac.uk/library/sp...acts/medals/
Gauss, Carl Friedrich (1777-1855) Silver medal by Brehmer, 7cm. Obv. Bust of Gauss, r. Leg. CAROLVS FRIDERICVS GAVSS NAT. MDCCLXXVII APR. XXX OB. MDCCCLV FEB. XXIII. Rev. Wreath enclosing inscription GEORGIVS V | REX HANNOVERAE | MATHEMATICORVM PRINCIPI. Leg. ACADEMIAE SVAE GEORGIAE AVGVSTAE DECORI AETERNO.

Any help will be most appreciated.
Thank You