Under the Mail floater of a Commercial Inland Marine policy, which property is covered only if sent by registered mail?

The coverage provided under the Mail floater in a Commercial Inland Marine policy is designed to protect certain types of property while they are in transit through the mail. Currency and unsold traveler's checks are unique in that they are specifically at risk of loss during transport and require a higher level of security when being sent.

In this context, currency and unsold traveler’s checks must be sent by registered mail to qualify for coverage. Registered mail offers a higher level of security and tracking compared to other mail services and is thus considered a precaution necessary to safeguard these valuable items. The inherent risk involved with transporting cash and checks necessitates this additional security measure.

In contrast, other options like money orders, checks, drafts, notes, bonds, stocks, stock certificates, and postage and revenue stamps may not have the same restrictions as they can typically be covered under more general conditions of the policy without the requirement of registered mail for coverage. This distinction emphasizes the specific nature of how high-risk items, like currency and unsold traveler’s checks, are treated in terms of insurance coverage during transit.