Chevron
The chevron is inherently double (see double forms).
Inverted:
G T D
RED ES HE
LINEN DOS FOE
DEVELOP IONS CROP
DIAERESES UNITS SLAVE
GASSTATIONS MEDICINEMEN
ASHES EERIE RELATIVES
SHED RITA REPAPER
LES ACT SELES
IS HE SIR
T D C