Guatemala 25 Centavos 1869: Denomination and mintage?

Two questions about this coin:

N#75193

1. The SCWC, Numismaster and the NGC website all list this coin (KM# 189) as “25 centimos”. Numista lists it as “25 centavos”. The reverse of the coin doesn't help, because it reads, “25 CENT.”, which is consistent with both listed denominations. Do we know for sure which denomination is correct?

2. The mintage for the 1869-R date is given as “181,000” in the SCWC, on Numismaster and on the NGC website. Numista has the mintage as “80,994”. Did the SCWC and the others round the Numista mintage to “81,000” and then for some reason put a “1” in front of the “8”, or did Numista somehow drop the “1” that should be in front of the “8”?

1. It's indeed a bit strange since that type is the only one in Krause given the name "centimos". All the other types are "centavos".

But Krause also says centavos and centimos are equal:

They mean the exact same thing, one-hundredth. It seems Centavo is more common in Latin America, Centimo more common in Spain but both can and are used both sides of the Atlantic (and beyond, in Tagalog etc.).

Unless it was explicitly written as centimos in some official documents regarding the coin, using centavos to be consistent with the other coins makes sense to me.

As for the mintage, Monedas de Guatemala gives 80,794 for this year. I don't know what their original source is, but that's mostly in agreement with the Numista catalog.