the age of the insured but also grade the charge per $1000 according to
age. In the case of the former, members from eighteen to thirty-five
years of age pay $1 monthly per $1000 of insurance; those from
thirty-five to forty, $1.25; from forty to fifty, $1.50. Insurance rates
in the Letter Carriers' Mutual Benefit Department have, with the
exception of the first year of operation, been graded according to age.
The minimum and maximum age limits are twenty-one and fifty-five years.
The monthly rates vary according to age from 77 cents per $1000 of
insurance at twenty-one years to $2.06 at fifty years.

The following table shows the regulations as to the amount and rate of
insurance issued according to ages:

Amount of Insurance
Organization. Age Classes. Issued.

Engineers ............. Under 40 years. $4500
40 and under 45. 3000
45 and under 50. 1500

Conductors ............ Under 35 years. 3000
35 and under 45. 2000
45 to 50. 1000

Firemen ............... Under 45 years. 3000
45 and over. 1500

Trainmen .............. No age restriction. 1350

Telegraphers .......... 18 and under 45. 1000