. That
a good time I wanted to write this post because it is an area where I am completely ignorant and that I would learn a little ...
It seemed that there were many types of mechanical postage among which are the three following we encounter every day on our mail ...
marks completely computerized
(it seems that there are many types)
red marks
(blocks dater round - with or without advertising)
The blue marks (very common)
(Dater square block - with or without mention of the type of transmission: "priority letter," for example).
But now, I know nothing and I learn a little about what to collect in this area: =
types of postage (with or without advertising) =
possibly machine types
= ink colors =
rates and dates
= letters headed
= etc. ...
Who could tell me where I can find documentation to start a collection like this? bibliography, websites, etc. ...
Thanks in advance for your cooperation.
.
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