Unusual P. J. Redoute Print??

I have taken this painting/print out of its frame to have a closer look at it.

I know it sounds ridiculous but it doesnt appear to be a print.   I have read that a prints tell tale sign is that under magnification "dots" appear.  This doesnt happen with this item.  All you see is the texture of the paper showing through the pigment.

The paper is very heavily textured .. also something not normally used for a print, and has what looks like a cardboard backing.

Its faded considerably ... but then Van Goghs "vase of pink roses" is now a vase of white roses .. so pigment damage is a possibility.

There's also a small inscription on the back very difficult to make out but I'm reasonably certain its written in French ... and as far fetched as it sounds .. the handwriting looks incredibly similar to the handwriting in a Redoute letter I found while searching the internet.

I know the chance of "finding" a long lost original are billions to one .. so I'm thinking that maybe there is some other explanation for the oddities of this item that I'm unaware of ... I'd certainly love any feedback you could give me.

Thankyou.