Estoc (Period)

The “estoc”, or “tuck”, is a sword with a narrow square blade, with no cutting edge.  It was intended solely for thrusting, through gaps in the foe’s armor [Stone 223]; it was the precursor to the rapier of late period.  The estoc is found in the canting arms of Tuck, 1419 [DBA4 431].

Illuminada Eugenia de Guadalupe y Godoy bears as a badge:  An open book argent and overall an estoc inverted Or.