(b) Disbursements on motion. Upon motion of any party made after the
determination of a motion, or upon its own initiative, the court may
allow any party thereto to tax as disbursements his reasonable and
necessary expenses of the motion.
(c) Disbursements to party not awarded costs. The court may allow
taxation of disbursements by a party not awarded costs in an action or
on appeal; and shall allow taxation of disbursements by a party not
awarded costs in an action for a sum of money only where he recovers the
sum of fifty dollars or more.
(d) Reasonable fees taxable. Where an expense for a service performed,
other than a search, is a taxable disbursement, the court may allow its
taxation in an amount equal to the reasonable sum actually and
necessarily expended therefor, if it is the usual charge made by private
persons for the service, although it is in excess of the fee allowed a
public officer.