“Employee life insurance” is that plan of life insurance, other than salary savings life insurance or pension trust insurance and annuities, under which individual policies are issued to the employees of an employer and where the policies are issued on the lives of not less than five nor more than 10 employees at the date of issue. Premiums for the policies shall be paid by the employer or the trustee of a fund established by the employer either wholly from the employer's funds, or funds contributed by the employer, or partly from these funds and partly from funds contributed by the insured employees.