The question refers to a letter apparently having the C6 format (4.5 x 6.4 -
have nothing in hand to measure it) that contains just a sheet of paper
(hence low weighted).

It was sent from and to New York City.

I wonder:

- Why was it franked twice, at two different dates?

- Why are the rates different?

- Why has the value on one metering stamp 3 leading zeros and it has only 2
on the other (maybe different postage meters used)?

The scan of the right side (about 1/3) of the letter, zoomed, is shown he

http://www.artonstamps.org/Countries...ass-letter.jpg

--
Victor Manta