1 real Catholic Kings Sevilla

Hello!

I've just received this 1 real and it has been minted in Sevilla as it presents an "S" on the right side of the shield. However, on the left side, there is this weird symbol, something like a mixture between a "T" and a "L".


I'll try to zoom in a bit.


Any ideas?
Thank you!

B.

Looks like this one: https://auctions.stacksbowers.com/lots/view/3-MTFKQ/spain-real-nd-1497-1504-s-seville-mint-ferdinand-isabel-ngc-vf-35
But they call it "uncertain control to left, S to right"

Or this one: https://auctions.stacksbowers.com/lots/view/3-KDJXX/spain-real-nd-1469-1504-s-seville-mint-ferdinand-and-isabella-ngc-au-53
They call it: "Gothic D assayer"

Thanks, Essor Prof!
Any ideas of where I can find references about the reales from the Catholic Kings?

Thanks!

Xavier Calicó; 2008. Numismática española : catálogo general con precios de todas las monedas españolas acuñadas desde los Reyes Católicos hasta Juan Carlos I, 1474 a 2001. Áureo & Calicó, Barcelona, Spain. ISBN 9788461217083.

I thought so. I have a version from 1994 but it's almost unreadable and there is no reference to the gothic D. Anyway, thanks again!