Hi,
I was curious about the cancels on these telegraph stamps. Anyone have any information about the cancellations?
I realize the stamps themselves are low value stamps, but the cancels looked interesting, and caught by eye.
They don't look like the cancels I see on a lot of Spanish telegraph stamps. Usually, it seems like I see straight-line rubber cancels of a date.

50 cts. orange: looks like purple AGREDA hand stamp and hand-written date
1 pta. purple: looks like purple boxed MEDINA / ENLACE hand stamp with hand-written date
According to Wikipedia, Agreda is a Spanish municipality and town in the province of Soria. Population was 2852 in 1897, 3637 in 1981, 3084 in 2014.
With that low of population in 20th century, it seems like this mark might not be too common.
I'm unsure about MEDINA / ENLACE. Googling shows a Medina-Sidonia in southern Spain, but I also saw a result pulled from Quora that says
"It's Spanish, from the Arabic word medinat, meaning city or specifically the old part of a city. Many cities retained the word Medina in their names after the Reconquista, like Medina del Campo, Medina de Rioseco or Medina Sidonia, among others."Putting ENLACE into Google Translate seems to indicate it means "Link" or something similar?
Also, just curious, do people collect Spanish telegraphic cancellations? Is there a place to look them up?