| Show Casualty Companies Plan Air Insurance NEW YORK Dec 19 UP Six UP-Six Six of the nations nation's largest casualty in insurance insurance insurance in- in companies affirmed their belief belie In the safety o of air travel today by jointly announcing the underwriting of or a new form o of air insurance to compare in cost with any to form Im I'm o of travel insurance The new type will be an em- em playes plaes voluntary contractual liability liability lia lia- policy Through its provisions provisions provisions provi provi- firms will be able to obtain insurance up to for Cor each traveling by air at the rate of 1 per 1000 for each The minimum premium will be 50 which will cover five persons named or optional |