known: two brothers Van den Bergh marry sisters Cock and the lamb or cow of the family Crucius

            an 18th century iron fob or wax seal pendant, 

known as a SWIVEL, with triple matrix, a scrollwork frame and 

a central clutch to push down to hold the to be used matrix in place,

we see:

a conjugal coat of arms, for a marriage

I. a castle with towers and reversed flags / vanes of the family 

Van den Bergh / Berch

II.  a bend between two escallops of the family 

Cock

for the marriage in 1746 of

Pieter Van den Bergh (1708-1783) and Johanna Hadewich Cock (1702-1768)

no children documented

or

 Jan Van den Bergh (1707-1737) and Adriana Geertruid Cock (1705-1734)

their daughter, Cornelia Helena Van den Bergh (1733-1741), died at the age of 8

Pieter and Jan were sons of 

Isaac Van den Bergh (1677-1728) and Cornelia van Leeuwen (1675-1753)

Johanna Hadewich Cock and Adriana Geertruid Cock were daughters of 

Mattheus Cock and Hendrica Cornelia Bouman,

and perhaps the above: no children and early deaths, might explain the empty third matrix

a coat of arms, quarterly with inescutcheon

I.  Van den Bergh - a castle with towers and reversed flags / vanes

II. van Leeuwen - a red chevron with three escallops

III. Crucius - per fess in green a lamb, also refered to as a cow and a cross pattee

for mothers side of Isaac Van den Bergh: 

Sara Crucius (1651-1687) 

she married in 1675 with Christoffel Van den Bergh (1639-1719) 

Crucius is also documented as: Kruisius, Crutius, de la Croix

IV. Reijnders / Reynders - in gold, a double headed eagle 

for mothers side of Cornelia van Leeuwen: 

Anna Reijnders (1645-1699) married with Jan van Leeuwen

V. in blue / Azure two crossed swords

in Holland we found this coat of arms for: Riebeeck / Riebeek, 

but no relationship with Bergh / Berch found.

We think it might be derived from the coat of arms / armoirie / blason of 

Jean de la Cour, seigneur De Buisson et vicomte de Caen or 

the blason of Buisson de Champigny en France-Comte, 

in Holland the French name De Buisson et de la Caen was probably written as 

Debuissonet de la Cane 

we found documented:

Maries des Marquis de Buissonet de la Cane (1599-1669), 

she married in 1617 with Isaac van den Berch (1595-1665)

as supporters two lions rampant regardant 

and topped with a five leaf crown

and beneath it all a ribbon with a small face,

the third matrix is vacant / empty

this antique swivel wax seal

is for sale at

Delta 98 Den Haag

The Hague, The Netherlands