France The Rights of Man Series Type A17

I wasn't aware of this, so I sneaked a peak into my Michel catalog.
 You are right!
 With the 10 cent an easy tell is the base of the one being curved vs. straight.

MikeC99 , no mention is made of a difference for the 25; though, from viewing those you showed, I'd expect the separately-stamped 25 to be a bit thicker,etc.

EDIT:
 I looked up the issue (1900 type Mouchon) in the GPFS site.  They show a dot between the 2 and the 5 for their type II and almost no difference in letter shape.
I tried to post a link to the image, but it is in some sort of database that doesn't lend itself to copy/pasting.  Go to

 www.gpfs-online.org/france/fr/database.php?P=%2BK3NlSpejday3sSulJ5fslngMi8oArECXt5VUAfnhNdJPotjITmcyGyEdNAzLyMOY4cpGvASBvB66QKgtjJxNA%3D%3D
The second time I used this link it took me to the index instead....in that case you need to go to catalog...europe..france...work your way to 1900 and get the english version.

then click on the 25c stamp and additionally on the "types - varieties" box

EDIT AGAIN:
I'm not trusting those images really.  Would like to get additional confirmation.
I have a 25c with no dot and find it hard to believe that I have the early rare type.  Also the tail of the 2 is thicker on my stamp, so fine details in numeral shape apparently don't count?

Butterfly is correct in distinguishing the 10c stamp. The 25c printings are primarily distinguished by breaks in the frame line, as the numerals are the same (disregarding closed loop varieties).

For the 10c issues:

1st printing (Y&T Type I, 2-step printing) -- Scott #116a, Y&T #112 ==> bottom of base of "1" is flat
2nd printing (Y&T Type II, simultaneous printing) -- Scott #116, Y&T #116 ==> bottom of base of "1" is curved

MikeC99 has already shown and correctly identified the two 10c printings in the OP.

For 25c stamp, the numerals are identical for both printings (disregarding closed loop varieties). The difference is seen in the breaks of the tablet frame line.

1st printing (Y&T Type I, 2-step printing) -- Scott #119a, Y&T #114 ==> inner double framelines appear continuous
2nd printing (Y&T Type II, simultaneous printing) -- Scott #119, Y&T #118 ==> clear breaks in inner double framelines

Butterfly has already shown and correctly identified a Scott #119 (Type II printing)

If the denomination is clearly off-center in the tablet or of different color shade, then the stamp should be a Type I (2-step) printing. You can see these 2 qualifiers very clearly in Mike's #116a. However, well-centered denomination of same color does not guarantee Type II, as some Type I printings can be "near-perfect".

The best way to distinguish are the "1" base test for the 10c and the frameline test for the 25c.

I have both 25c printings. I will try to dig them out and scan them later so you can see the difference side-by-side.

Butterfly , khj , thanks for your help in this matter. I have two 25c stamps and I am not entirely sure if they are the two types no matter how much I look at them with my magnifying glass.  Please confirm whether I am correct in my assumption.

Below are cropped images of the two stamps. I think the one on the left is 119 because the inner frame line of the value tablet is broken on the right side and bottom right. The numeral appears darker than the other stamp. The stamp on the right has a more continuous inner frame line and the numeral is lighter.



119?                                                                                     119a?
       

khj , thanks for the confirmation Kris. I'm looking at my early French stamps and finding identification of some to be a challenge. Unfortunately Scott is not a good reference guide for these French stamps.
Mike