This is a fragment of an altar to the Matronae Veteranehae, the Matrons of Veterans. It comes from the area around Embken and Wollersheim, which are neighborhoods of modern-day Nideggen, Germany. Various inscriptions have been found in the area, probably all from the same sanctuary. It dates from 150-200 C.E.
This partial inscription reads:
Which probably is short for: Mat[ronis] / Veter[anehis] / L[ucius] Sev[erinus] / Tac[itus?] –/—-, “To the Matronae Veteranehae, Lucius Severinus Tacitus–/—-”
The end of the inscription may have been a formula such as VSLM (votum solvit libens merito, “fulfilled his vow willingly and deservedly” or DD (donum dedit, “gave this gift”).
In The Cult of the Matronae in the Roman Rhineland, Alex Garman writes:
“Veteranehae” derives from the Latin veterani which means retired soldiers. The name and the location of the site suggest that some of the surrounding farms were owned or managed by retired Roman soldiers. The inscriptions […] do not record any ranks or positions held. (55)