I got this from a bulb collector who bought this bulb in Mexico, you can see the Spanish words on the carton. Seems well made. The bulb has a 3 support single coil C-9 filament.
Yup, I have several Mexican bulbs made by Solar, GE, Philips, Osram and Duro-Mex. Mexican bulbs are typically 125v, slightly higher than ours. I should take pics of the others.