[Crm-sig] A symbol made of symbols

Ethan Gruber ewg4xuva at gmail.com
Wed Nov 6 23:18:17 EET 2019


Hi all,

I have a large number (thousands) of monograms that appear on Greek
coinage. There is an SVG file that represents an idealized form of the
monogram. The Nomisma ontology has a nmo:Monogram class, and I am
attempting to link Nomisma more directly as subclasses or subproperties to
CIDOC-CRM ones. A monogram fits the definition of a subclass of
crm:E37_Mark:

"This  class  comprises  symbols,  signs,  signatures  or  short  texts
 applied  to  instances  of  E24  Physical Man-Made Thing by arbitrary
techniques in order to indicate the creator, owner, dedications, purpose,
etc."

In this sense, if I want to link a monogram to its constituent letters, is
P106_is_composed_of the appropriate property for this?

For example, I have a URI for a monogram,
http://numismatics.org/ocre/symbol/monogram.ric.10.theodosius_ii.3

Therefore:

<http://numismatics.org/ocre/symbol/monogram.ric.10.theodosius_ii.3> a
nmo:Monogram ;
  crm:P106_is_composed_of "T" ;
  crm:P106_is_composed_of "H" .

etc.

The next question I have is how do I link this concept of a monogram to one
or more SVG files that represent this monogram? There could be variant
images based on individual styles of die-carvers, but scholars agree these
variations represent the same semantic concept.

I am looking at the documentation for P138 represents, and I am having a
difficult time understanding the distinction between the examples where a
digital file (PLY 3D model or a JPEG image) is the E36 Visual Item, but in
other documentation the E36 Visual Item seems more conceptual.

If a Visual Item is definitionally an E1 CRM Entity, then a Visual Item can
still represent another Visual Item, correct? So:

<http://numismatics.org/ocre/symbol/monogram.ric.10.theodosius_ii.3> a
nmo:Monogram ;
  crm:P106_is_composed_of "T" ;
  crm:P106_is_composed_of "H" ;
  crm:P138i_has_representation <
http://numismatics.org/ocre/symbols/monogram.ric.10.theodosius_ii.3> #svg
file url

Thanks,
Ethan
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