According to my Serif Font ID Guide there are at least 1,208 serif families with an R of this general style. You can narrow that down by a great deal if you know of any other letters from this font. Or.. you can try looking through the samples from all 1,208 families to see which R resembles the specific shape of this R.

Can you tell us anything about this font, or your sample? Is this a hypothetical R that you drew, or a real sample from something?

- Mike Yanega

It would help if you gave some information on the source and date of your image. At least you should provide any information you have as to whether it is digital or before the current digital era, i.e. circa 1990.
In any event, the R is some version of French Old Style. Can't say anything about the rest of the font from which the R was taken, or even if it forms part of a font and is not an individual design for an R.
Here is French Old Style No. 2 as sold by ATF in 1900 -- and probably similar to versions sold by foundries in Europe and America for many years before then

this is indeed a version I redrew, its from a iron typeface that has been put on a facade about 20 years ago. The letters are in a classical style, probably a french one like you guys suggest. The A is also a bid odd, it has a very low horizontal bar...

Edited to add sentence at end of post:
Hi Bas, good enough. For the rest of your font almost any Trajan would do for the general letter forms. But see my next post for a better suggestion.
Don

That A reminds me of some Dutch designs. See Canada Type's Zilvertype.

- Mike Yanega

A somewhat similar A and the R are both found in the metal font Elzevir Antiqua from Genzsch & Heyse