Spanish copper, Isabel II, extremely worn

Found an incredibly beat-up old copper that I'm trying to identify just for fun. The closest match I can find is this, but the reverse legend is different:
https://en.numista.com/catalogue/pieces4402.html
The only visible details are the words "DE LAS" at the bottom of the reverse, and the topmost of the four large fleurs-de-lis, with the "S P A" of "ESPANA" above it, but the "A" is exactly above the tip of the fleur-de-lis. On the obverse, the shadow of the outline of Isabel II and the "M" for Maravedis (conveniently narrowing down the potential date range) are all that is visible.
I cannot find any designs with this reverse and the obverse "M" that have an "A" directly above the fleur-de-lis on the back, so I can't pin down the denomination (date is a lost cause).
Diameter is 28 mm, and orientation is tilted 90 degrees - neither coin nor medal, probably just an error.
Any opinions?

(apologies, no pictures, it's hard enough to make out the details under bright light that my camera won't capture any of them clearly)

Hi,

it is difficult to help you having not a picture of the coin, however have a look to this website and try to find anwers to your questions

http://monedasisabelii.blogspot.com.es/2013/04/8-maravedis-1836-1858.html

Regards
Antonio

8 Maravedies from 1850 - SPAIN 1833-48

http://www.coindatabase.com/coin_detail_pesetas.php?cdb=R080128




:EDIT - Seems the poster above found it, I didn't take any notice of that post so now you have two possible solutions.