Later he played for Telefon Club București who in 1950 merged with CFR București, forming Locomotiva PTT București, where Herold was a player-coach, managing to win the 1951 Romanian League title. He also played 24 games for the national team, including appearances at EuroBasket 1947 where the team finished on the 10th position with Herold having a 6.6 average points per game scored. In 1952 he transferred to new founded club CCA București where he played until 1953 after which he retired from playing and became the team's coach.