The flag of Antzuola is from this website. The coat-of-arms is in the same page. I don't remember this flag in Jaume Ollé's Basque flags pages.
Dov Gutterman, 28 Dec 1998
A very complex flag with a different obverse and reverse, and about which there's conflicting information (and images) on the web.
Everybody agrees that it's a dark or golden yellow flag with a zigzag border with corner decorations. All sources also agree that the inner part of the flag is divided in quarters by a dark red burgundy cross and that the top and bottom quartes are dark or golden yellow with charges and the hoist and fly quarters are mirrored and patterned with a complex pattern of golden yellow, white and black triangles. All these elements are also common to the obverse and the reverse, but there ends what's consensual. Here are the differences:
Most sources agree that the border is dark yellow and light blue, but in Eduardo Panizo's Vexilla Hispanica website, it's dark yellow and GREEN.
Most sources agree that the bottom quarter is identical in the obverse and reverse of the flag, containing a white crescent, three tall green trees (cypresses?) in a row and six green plants in dark red vases disposed in two rows, 2 above and 4 below, intercalating the tall trees. Panizo, however, disagrees again, by not showing the central tree in the reverse of the flag.
Everyone agrees that the top quarter has some things in common in the obverse and reverse (two white crescents facing inward and two plants in vases on both sides of a green arch (what's this charge?), but that the obverse and reverse are different in the charges the arch contains. They all agree that one of the sides shows a white disc on a red chalix, two tall trees and one plant in vase, and the other a red crowned M with three plants in vases, but whereas FOTW and the Antzuola website FOTW refers to show the chalix as the obverse, Panizo and Aingeru Astui Zarraga, at http://es.geocities.com/aingast/index2321.htm indicate that this is in the reverse and the M in the obverse.
This needs to be sorted out. Who's right, who's wrong, or is is it that everybody is right and there are variations around?