'''$b''': Citation (R, O)
'''$u''': Uniform Resource Identifier (URI) (R, O)
== Indicators ==
Indicator 1: Element
Specifies the element of the numismatic resource described in this field.
'''Values:'''
'''#''': Not specified / other
'''0''': Monogram
'''1''': Die
'''2''': Punch
'''3''': Control mark
Indicator 2: Part of the Numismatic Resource Described
Specifies which part of the numismatic resource is being described.
'''Values:'''
'''#''': Unspecified / other
'''1''': Obverse
'''2''': Reverse
'''3''': Edge
== Індикатори ==